Adding diff form 7/15 WD from 2nd PWD
authorsspeiche
Mon, 15 Jul 2013 10:43:47 -0400
changeset 203 79f433ad777f
parent 202 8d42c2346d50
child 204 04f24555e6aa
child 206 812d3e1f3412
Adding diff form 7/15 WD from 2nd PWD
ldp-diff-20130715.html
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ldp-diff-20130715.html	Mon Jul 15 10:43:47 2013 -0400
@@ -0,0 +1,16319 @@
+<!-- 
+ Editor TODO:
+   - Incorporate ISSUE-37 text from Ashok
+   - Fix up LDPR paging sample to remove container
+   - Should we remove / hide "Change History" section?
+   - Generate HTML DIFF version
+ -->
+<html xmlns="http://www.w3.org/1999/xhtml">
+<head>
+<title>Linked Data Platform 1.0</title>
+<meta http-equiv='Content-Type' content='text/html; charset=utf-8' /><!-- 
+      === NOTA BENE ===
+      For the three scripts below, if your spec resides on dev.w3 you can check them
+      out in the same tree and use relative links so that they'll work offline,
+     -->
+
+<script src='https://www.w3.org/Tools/respec/respec-w3c-common' class='remove' async="" type="text/javascript">
+</script>
+<script class='remove' type="text/javascript">
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+          // specification status (e.g. WD, LCWD, NOTE, etc.). If in doubt use ED.
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+          
+          // the specification's short name, as in http://www.w3.org/TR/short-name/
+          shortName:            "ldp",
+
+          // if your specification has a subtitle that goes below the main
+          // formal title, define it here
+          // subtitle   :  "an excellent document",
+
+          // if you wish the publication date to be other than today, set this
+          // publishDate:  "2009-08-06",
+
+          // if the specification's copyright date is a range of years, specify
+          // the start date here:
+          // copyrightStart: "2005"
+
+          // if there is a previously published draft, uncomment this and set its YYYY-MM-DD date
+          // and its maturity status
+          previousPublishDate:  "2013-03-07",
+          previousMaturity:     "FPWD",
+          previousURI:                  "http://www.w3.org/TR/2013/WD-ldp-20130307/",
+
+          // if there a publicly available Editor's Draft, this is the link
+          edDraftURI:           "http://www.w3.org/2012/ldp/hg/ldp.html",
+
+          // if this is a LCWD, uncomment and set the end of its review period
+          // lcEnd: "2009-08-05",
+
+          // if you want to have extra CSS, append them to this list
+          // it is recommended that the respec.css stylesheet be kept
+          //extraCSS:             ["https://dvcs.w3.org/hg/ldpwg/css/respec.css"],
+
+          // editors, add as many as you like
+          // only "name" is required
+          editors:  [
+              { name: "Steve Speicher", url: "http://stevespeicher.blogspot.com",
+                company: "IBM Corporation", companyURL: "http://ibm.com/" },
+              { name: "John Arwe", url: "https://www.ibm.com/developerworks/mydeveloperworks/groups/service/html/allcommunities?userid=120000CAW7",
+                company: "IBM Corporation", companyURL: "http://ibm.com/" },
+                          {name: "Ashok Malhotra", url: "ashok.malhotra@oracle.com",
+                            company: "Oracle Corporation", companyURL: "http://www.oracle.com" },
+          ],
+
+          // authors, add as many as you like. 
+          // This is optional, uncomment if you have authors as well as editors.
+          // only "name" is required. Same format as editors.
+
+          //authors:  [
+          //    { name: "Your Name", url: "http://example.org/",
+          //      company: "Your Company", companyURL: "http://example.com/" },
+          //],
+          
+          // name of the WG
+          wg:           "Linked Data Platform Working Group",
+          
+          // URI of the public WG page
+          wgURI:        "http://www.w3.org/2012/ldp",
+          
+          // name (without the @w3c.org) of the public mailing to which comments are due
+          wgPublicList: "public-ldp-wg",
+          
+          // URI of the patent status for this WG, for Rec-track documents
+          // !!!! IMPORTANT !!!!
+          // This is important for Rec-track documents, do not copy a patent URI from a random
+          // document unless you know what you're doing. If in doubt ask your friendly neighbourhood
+          // Team Contact.
+          wgPatentURI:  "http://www.w3.org/2004/01/pp-impl/55082/status",
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+      };
+//]]>
+</script>
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+                        The default code font size was also somewhat too small/hard to read.
+                */
+/*]]>*/
+</style>
+<style type='text/css'>
+.diff-old-a {
+  font-size: smaller;
+  color: red;
+}
+
+.diff-new { background-color: yellow; }
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+.diff-new:before,
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+.diff-old:after
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+</style>
+</head>
+<body>
+<del class="diff-old">Linked
+Data
+Platform
+1.0
+W3C
+Working
+Draft
+7
+March
+2013
+This
+version:
+http://www.w3.org/TR/2013/WD-ldp-20130307/
+Latest
+version:
+http://www.w3.org/TR/ldp/
+Previous
+version:
+http://www.w3.org/TR/2012/WD-ldp-20121025/
+Editors:
+Steve
+Speicher
+,
+IBM
+Corporation
+John
+Arwe
+,
+IBM
+Corporation
+Copyright

+2013
+W3C

+(
+MIT
+,
+ERCIM
+,
+Keio
+,
+Beihang
+),
+All
+Rights
+Reserved.
+W3C
+liability
+,
+trademark
+and
+document
+use
+rules
+apply.
+Abstract
+</del>
+<section id='abstract'>
+A
+set
+of
+best
+practices
+and
+simple
+approach
+for
+a
+read-write
+Linked
+Data
+architecture,
+based
+on
+HTTP
+access
+to
+web
+resources
+that
+describe
+their
+state
+using
+the
+<abbr title="Resource Description Framework">
+RDF
+</abbr>
+data
+model.
+<del class="diff-old">Status
+of
+This
+Document
+This
+section
+describes
+the
+status
+of
+this
+document
+at
+the
+time
+of
+its
+publication.
+Other
+documents
+may
+supersede
+this
+document.
+A
+list
+of
+current
+W3C
+publications
+and
+the
+latest
+revision
+of
+this
+technical
+report
+can
+be
+found
+in
+the
+W3C
+technical
+reports
+index
+at
+http://www.w3.org/TR/.
+This
+Public
+Working
+Draft
+was
+published
+by
+the
+Linked
+Data
+Platform
+Working
+Group
+.
+All
+known
+issues
+are
+documented
+inline
+as
+well
+as
+in
+the
+LDP
+WG
+Issue
+Tracker
+.
+If
+you
+wish
+to
+make
+comments
+regarding
+this
+document,
+please
+send
+them
+to
+public-ldp@w3.org
+(
+subscribe
+,
+archives
+).
+All
+comments
+are
+welcome.
+Publication
+as
+a
+Working
+Draft
+does
+not
+imply
+endorsement
+by
+the
+W3C
+Membership.
+This
+is
+a
+draft
+document
+and
+may
+be
+updated,
+replaced
+or
+obsoleted
+by
+other
+documents
+at
+any
+time.
+It
+is
+inappropriate
+to
+cite
+this
+document
+as
+other
+than
+work
+in
+progress.
+This
+document
+was
+produced
+by
+a
+group
+operating
+under
+the
+5
+February
+2004
+W3C
+Patent
+Policy
+.
+W3C
+maintains
+a
+public
+list
+of
+any
+patent
+disclosures
+made
+in
+connection
+with
+the
+deliverables
+of
+the
+group;
+that
+page
+also
+includes
+instructions
+for
+disclosing
+a
+patent.
+An
+individual
+who
+has
+actual
+knowledge
+of
+a
+patent
+which
+the
+individual
+believes
+contains
+Essential
+Claim(s)
+must
+disclose
+the
+information
+in
+accordance
+with
+section
+6
+of
+the
+W3C
+Patent
+Policy
+.
+Table
+of
+Contents
+1.
+Introduction
+2.
+Terminology
+2.1
+Conventions
+Used
+in
+This
+Document
+3.
+Conformance
+4.
+Linked
+Data
+Platform
+Resources
+4.1
+General
+4.2
+HTTP
+GET
+4.3
+HTTP
+POST
+4.4
+HTTP
+PUT
+4.5
+HTTP
+DELETE
+4.6
+HTTP
+HEAD
+4.7
+HTTP
+PATCH
+5.
+Linked
+Data
+Platform
+Containers
+5.1
+Informative
+5.2
+General
+5.3
+HTTP
+GET
+5.4
+HTTP
+POST
+5.5
+HTTP
+PUT
+5.6
+HTTP
+DELETE
+5.7
+HTTP
+HEAD
+5.8
+HTTP
+PATCH
+A.
+Acknowledgements
+B.
+Change
+History
+C.
+Editor
+Todos
+and
+Notes
+D.
+References
+D.1
+Normative
+references
+D.2
+Informative
+references
+1.
+</del>
+</section>
+<section>
+<h1 id="intro">
+Introduction
+</h1>
+<p>
+This
+document
+describes
+the
+use
+of
+HTTP
+for
+accessing,
+updating,
+creating
+and
+deleting
+resources
+from
+servers
+that
+expose
+their
+resources
+as
+Linked
+Data.
+<del class="diff-old">It
+</del>
+<ins class="diff-chg">&#160;It
+</ins>
+provides
+some
+new
+rules
+as
+well
+as
+clarifications
+and
+extensions
+of
+the
+four
+rules
+of
+Linked
+Data
+<del class="diff-old">[
+LINKED-DATA
+]:
+</del>
+<ins class="diff-chg">[[LINKED-DATA]]:
+</ins>
+</p>
+<p>
+1.
+Use
+URIs
+as
+names
+for
+things
+</p>
+<p>
+2.
+Use
+HTTP
+URIs
+so
+that
+people
+can
+look
+up
+those
+names
+</p>
+<p>
+3.
+When
+someone
+looks
+up
+a
+URI,
+provide
+useful
+information,
+using
+the
+standards
+<del class="diff-old">(
+RDF
+*,
+</del>
+<ins class="diff-chg">(RDF*,
+</ins>
+<abbr title="SPARQL Protocol and RDF Query Language">
+SPARQL
+</abbr>
+)
+</p>
+<p>
+4.
+Include
+links
+to
+other
+URIs.
+so
+that
+they
+can
+discover
+more
+things
+</p>
+<p>
+The
+best
+practices
+and
+anti-patterns
+covered
+in
+this
+document
+are:
+</p>
+<ul>
+<li>
+<p>
+<em>
+Resources
+</em>
+-
+a
+summary
+of
+the
+HTTP
+and
+RDF
+standard
+techniques
+and
+best
+practices
+that
+you
+should
+use,
+and
+anti-patterns
+you
+should
+avoid,
+when
+constructing
+clients
+and
+servers
+that
+read
+and
+write
+Linked
+Data.
+</p>
+</li>
+<li>
+<p>
+<em>
+Containers
+</em>
+-
+defines
+resources
+that
+allow
+new
+resources
+to
+be
+created
+using
+HTTP
+POST
+and
+existing
+resources
+to
+be
+found
+using
+HTTP
+<del class="diff-old">GET.
+</del>
+<ins class="diff-chg">GET.&#160;
+</ins>
+</p>
+</li>
+</ul>
+<p>
+Additionally,
+it
+is
+the
+intention
+of
+this
+document
+to
+enable
+additional
+rules
+and
+layered
+groupings
+of
+rules,
+such
+as
+additional
+specifications.
+<del class="diff-old">The
+</del>
+<ins class="diff-chg">&#160;The
+</ins>
+scope
+is
+intentionally
+narrow
+to
+provide
+a
+set
+of
+key
+rules
+for
+reading
+and
+writing
+Linked
+Data
+that
+most,
+if
+not
+all,
+other
+specifications
+will
+depend
+upon
+and
+implementations
+will
+support.
+</p>
+<div class="ldp-issue-open">
+<div class="ldp-issue-title">
+<a href="http://www.w3.org/2012/ldp/track/issues/37">
+<ins class="diff-new">ISSUE-37
+</ins></a>
+</div>
+<ins class="diff-chg">Additional
+introductory
+text
+on
+the
+LDP
+data
+and
+interaction
+model
+</ins><em><ins class="diff-chg">
+--
+awaiting
+contribution
+</ins></em>
+<del class="diff-old">2.
+</del>
+</div>
+</section>
+<section>
+<h1 id="terms">
+Terminology
+</h1>
+<p>
+Terminology
+is
+based
+on
+<del class="diff-old">W3C
+'s
+</del>
+<ins class="diff-chg">W3C's
+</ins>
+Architecture
+of
+the
+World
+Wide
+Web
+<del class="diff-old">[
+WEBARCH
+]
+</del>
+<ins class="diff-chg">[[WEBARCH]]
+</ins>
+and
+Hyper-text
+Transfer
+Protocol
+<del class="diff-old">[
+HTTP11
+].
+</del>
+<ins class="diff-chg">[[HTTP11]].
+</ins>
+</p>
+<dl class="glossary">
+<dt>
+Link
+</dt>
+<dd>
+A
+relationship
+between
+two
+resources
+when
+one
+resource
+(representation)
+refers
+to
+the
+other
+resource
+by
+means
+of
+a
+URI
+<del class="diff-old">[
+WEBARCH
+].
+</del>
+<ins class="diff-chg">[[WEBARCH]].
+</ins>
+<p>
+</p>
+</dd>
+<dt>
+Linked
+Data
+</dt>
+<dd>
+As
+defined
+by
+Tim
+Berners-Lee
+<del class="diff-old">[
+LINKED-DATA
+].
+</del>
+<ins class="diff-chg">[[LINKED-DATA]].
+</ins>
+<p>
+</p>
+</dd>
+<dt>
+<dfn>
+Linked
+Data
+Platform
+Resource
+</dfn>
+(
+<dfn>
+<abbr title="Linked Data Platform Resource">
+LDPR
+</abbr>
+</dfn>
+)
+</dt>
+<dd>
+HTTP
+resource
+<ins class="diff-new">whose
+state
+is
+represented
+in
+RDF
+</ins>
+that
+conforms
+to
+the
+simple
+lifecycle
+patterns
+and
+conventions
+in
+the
+<del class="diff-old">LDPRs
+</del>
+<a href="#ldpr" class="sectionRef">
+<del class="diff-old">section.
+</del>
+</a>.
+<p>
+</p>
+</dd>
+<dt>
+<dfn>
+Linked
+Data
+Platform
+Container
+</dfn>
+(
+<dfn>
+<abbr title="Linked Data Platform Container">
+LDPC
+</abbr>
+</dfn>
+)
+</dt>
+<dd>
+<ins class="diff-chg">An
+</ins>
+LDPR
+<ins class="diff-chg">representing
+a
+collection
+of
+same-subject,
+same-predicate
+triples
+which
+is
+uniquely
+identified
+by
+a
+URI
+</ins>
+that
+<del class="diff-old">also
+conforms
+</del>
+<ins class="diff-chg">responds
+</ins>
+to
+<del class="diff-old">additional
+patterns
+and
+conventions
+</del>
+<ins class="diff-chg">client
+requests
+</ins>
+for
+<del class="diff-old">managing
+membership.
+</del>
+<ins class="diff-chg">creation,
+modification,
+and
+enumeration
+of
+its
+members.
+</ins>
+<p>
+</p>
+</dd>
+<dt>
+Client
+</dt>
+<dd>
+A
+program
+that
+establishes
+connections
+for
+the
+purpose
+of
+sending
+requests
+<del class="diff-old">[
+HTTP11
+].
+</del>
+<ins class="diff-chg">[[HTTP11]].
+</ins>
+<p>
+</p>
+</dd>
+<dt>
+Server
+</dt>
+<dd>
+An
+application
+program
+that
+accepts
+connections
+in
+order
+to
+service
+requests
+by
+sending
+back
+responses.
+<p>
+Any
+given
+program
+may
+be
+capable
+of
+being
+both
+a
+client
+and
+a
+server;
+our
+use
+of
+these
+terms
+refers
+only
+to
+the
+role
+being
+performed
+by
+the
+program
+for
+a
+particular
+connection,
+rather
+than
+to
+the
+program's
+capabilities
+in
+general.
+Likewise,
+any
+server
+may
+act
+as
+an
+origin
+server,
+proxy,
+gateway,
+or
+tunnel,
+switching
+behavior
+based
+on
+the
+nature
+of
+each
+request
+<del class="diff-old">[
+HTTP11
+].
+</del>
+<ins class="diff-chg">[[HTTP11]].
+</ins>
+</p>
+</dd>
+<dt>
+<dfn>
+Membership
+triples
+</dfn>
+</dt>
+<dd>
+A
+set
+of
+triples
+in
+an
+<del class="diff-old">LDPC
+'s
+</del>
+<ins class="diff-chg">LDPC's
+</ins>
+state
+that
+lists
+its
+members.
+The
+membership
+triples
+of
+a
+container
+all
+have
+the
+same
+subject
+and
+predicate,
+and
+the
+objects
+of
+the
+membership
+triples
+define
+the
+container's
+members.
+<p>
+</p>
+</dd>
+<dt>
+<dfn>
+Membership
+subject
+</dfn>
+</dt>
+<dd>
+The
+subject
+of
+all
+<del class="diff-old">an
+LDPC
+'s
+</del>
+<ins class="diff-chg">a
+LDPC's
+</ins>
+<a title="Membership triples">
+membership
+triples
+</a>.
+<p>
+</p>
+</dd>
+<dt>
+<dfn>
+Membership
+predicate
+</dfn>
+</dt>
+<dd>
+The
+predicate
+of
+all
+<del class="diff-old">an
+LDPC
+'s
+</del>
+<ins class="diff-chg">a
+LDPC's
+</ins>
+<a title="Membership triples">
+membership
+triples
+</a>.
+<p>
+</p>
+</dd>
+<dt>
+<dfn>
+<ins class="diff-new">Non-member
+resource
+</ins></dfn></dt><dd><ins class="diff-new">
+A
+resource
+associated
+with
+a
+LDPC
+by
+a
+server
+for
+the
+purpose
+of
+enabling
+clients
+to
+retrieve
+a
+subset
+of
+the
+LDPC's
+state,
+namely
+the
+subset
+that
+omits
+the
+LDPC's
+membership
+triples.
+In
+other
+words,
+the
+union
+of
+the
+non-member
+resource's
+state
+and
+the
+LDPC's
+membership
+triples
+exactly
+equals
+the
+LDPC's
+state.
+</ins><p>
+</p>
+</dd>
+<dt>
+<del class="diff-old">2.1
+</del>
+<dfn>
+<ins class="diff-chg">Resource
+inlining
+</ins></dfn></dt><dd><ins class="diff-chg">
+The
+practice
+of
+responding
+to
+a
+HTTP
+GET
+request
+made
+to
+a
+request
+URI
+</ins><var><ins class="diff-chg">
+R
+</ins><sub><ins class="diff-chg">
+0
+</ins></sub></var><ins class="diff-chg">
+with
+a
+representation
+that
+includes
+the
+state
+of
+</ins><var><ins class="diff-chg">
+R
+</ins><sub><ins class="diff-chg">
+0
+</ins></sub></var>,<ins class="diff-chg">
+the
+</ins><em><ins class="diff-chg">
+entire
+</ins></em><ins class="diff-chg">
+state
+of
+resources
+accessed
+through
+</ins><em><ins class="diff-chg">
+other
+</ins></em><ins class="diff-chg">
+request
+URI(s)
+</ins><var><ins class="diff-chg">
+R
+</ins><sub><ins class="diff-chg">
+1
+</ins></sub></var>...<var><ins class="diff-chg">
+R
+</ins><sub><ins class="diff-chg">
+n
+</ins></sub></var>,<em><ins class="diff-chg">
+and
+assertions
+</ins></em><ins class="diff-chg">
+from
+the
+server
+identifying
+the
+additional
+resources
+whose
+entire
+state
+has
+been
+provided.
+</ins><var><ins class="diff-chg">
+R
+</ins><sub><ins class="diff-chg">
+1
+</ins></sub></var>...<var><ins class="diff-chg">
+R
+</ins><sub><ins class="diff-chg">
+n
+</ins></sub></var><ins class="diff-chg">
+identify
+the
+inlined
+resource(s).
+See
+</ins><a href="#ldpr-inlining" class="sectionRef"></a><ins class="diff-chg">
+for
+details.
+</ins><p></p></dd><dt><dfn><ins class="diff-chg">
+Member
+inlining
+</ins></dfn></dt><dd><ins class="diff-chg">
+A
+special
+case
+of
+</ins><a title="Resource inlining"><ins class="diff-chg">
+resource
+inlining
+</ins></a>,<ins class="diff-chg">
+where
+all
+members
+of
+a
+container
+on
+a
+given
+page
+are
+inlined.
+The
+response
+page
+may
+or
+may
+not
+include
+all
+of
+the
+container's
+members.
+See
+</ins><a href="#ldpc-inlining" class="sectionRef"></a><ins class="diff-chg">
+for
+details.
+</ins><p></p></dd></dl><section><h2 id="conventions">
+Conventions
+Used
+in
+This
+Document
+</h2>
+<p>
+Sample
+resource
+representations
+are
+provided
+in
+<code>
+text/turtle
+</code>
+format
+<del class="diff-old">[
+TURTLE
+].
+</del>
+<ins class="diff-chg">[[TURTLE]].
+</ins>
+</p>
+<p>
+Commonly
+used
+namespace
+prefixes:
+</p>
+<del class="diff-old">		@prefix dcterms: &lt;http://purl.org/dc/terms/&gt;.
+	@prefix rdf:     &lt;http://www.w3.org/1999/02/22-rdf-syntax-ns#&gt;.
+	@prefix rdfs:    &lt;http://www.w3.org/2000/01/rdf-schema#&gt;.
+	@prefix ldp:     &lt;http://www.w3.org/ns/ldp#&gt;.
+@prefix
+xsd:
+&lt;http://www.w3.org/2001/XMLSchema#&gt;.
+</del>
+<pre style="word-wrap: break-word; white-space: pre-wrap;">
+<ins class="diff-chg">     @prefix dcterms: &lt;http://purl.org/dc/terms/&gt;.
+        @prefix rdf:     &lt;http://www.w3.org/1999/02/22-rdf-syntax-ns#&gt;.
+        @prefix rdfs:    &lt;http://www.w3.org/2000/01/rdf-schema#&gt;.
+        @prefix ldp:     &lt;http://www.w3.org/ns/ldp#&gt;.
+        @prefix xsd:     &lt;http://www.w3.org/2001/XMLSchema#&gt;.
+</ins>
+</pre>
+<del class="diff-old">3.
+Conformance
+As
+well
+as
+sections
+marked
+as
+non-normative,
+all
+authoring
+guidelines,
+diagrams,
+examples,
+and
+notes
+in
+this
+specification
+are
+non-normative.
+Everything
+else
+in
+this
+specification
+is
+normative.
+The
+key
+words
+MUST
+,
+MUST
+NOT
+,
+REQUIRED
+,
+SHOULD
+,
+SHOULD
+NOT
+,
+RECOMMENDED
+,
+MAY
+,
+and
+OPTIONAL
+in
+this
+specification
+are
+to
+be
+interpreted
+as
+described
+in
+[
+</del>
+<del class="diff-old">RFC2119
+].
+</del>
+</section>
+</section>
+<section id='conformance'>
+<p>
+The
+status
+of
+the
+sections
+of
+Linked
+Data
+Platform
+1.0
+(this
+document)
+is
+as
+follows:
+</p>
+<ul>
+<li>
+1.
+Introduction:
+<b>
+informative
+</b>
+</li>
+<li>
+2.
+Terminology:
+<b>
+informative
+</b>
+</li>
+<li>
+3.
+Conformance:
+<b>
+normative
+</b>
+</li>
+<li>
+4.
+Linked
+Data
+Platform
+Resources:
+<b>
+normative
+</b>
+</li>
+<li>
+5.
+Linked
+Data
+Platform
+Containers:
+<b>
+normative
+</b>
+</li>
+<li>
+<ins class="diff-new">6.
+HTTP
+Header
+Definitions:
+</ins><b><ins class="diff-new">
+normative
+</ins></b></li><li>
+A.
+Acknowledgements:
+<b>
+<del class="diff-old">normative
+</del>
+<ins class="diff-chg">informative
+</ins>
+</b>
+</li>
+<li>
+B.
+Change
+History:
+<b>
+<del class="diff-old">normative
+</del>
+<ins class="diff-chg">informative
+</ins>
+</b>
+</li>
+<li>
+<del class="diff-old">D.1
+</del>
+<ins class="diff-chg">C.1
+</ins>
+Normative
+references:
+<b>
+normative
+</b>
+</li>
+<li>
+<del class="diff-old">D.2
+</del>
+<ins class="diff-chg">C.2
+</ins>
+Informative
+references:
+<b>
+informative
+</b>
+</li>
+</ul>
+<p>
+A
+conforming
+<b>
+LDP
+<del class="diff-old">Server
+</del>
+<ins class="diff-chg">server
+</ins>
+</b>
+is
+an
+application
+program
+that
+processes
+HTTP
+requests
+and
+generates
+HTTP
+responses
+that
+conform
+to
+the
+rules
+defined
+in
+<del class="diff-old">sections
+on
+LDPRs
+</del>
+<a href="#linked-data-platform-resources" class="sectionRef">
+</a>
+and
+<del class="diff-old">LDPCs
+</del>
+<a href="#linked-data-platform-containers" class="sectionRef">
+</a>.
+</p>
+<p>
+A
+conforming
+<b>
+LDP
+<del class="diff-old">Client
+</del>
+<ins class="diff-chg">client
+</ins>
+</b>
+is
+an
+application
+program
+that
+generates
+HTTP
+requests
+and
+processes
+HTTP
+responses
+that
+conform
+to
+the
+rules
+defined
+in
+<del class="diff-old">sections
+on
+LDPRs
+</del>
+<a href="#linked-data-platform-resources" class="sectionRef">
+</a>
+and
+<del class="diff-old">LDPCs
+</del>
+<a href="#linked-data-platform-containers" class="sectionRef">
+</a>.
+</p>
+<del class="diff-old">4.
+</del>
+</section>
+<section>
+<h1 id="ldpr">
+Linked
+Data
+Platform
+Resources
+</h1>
+<p>
+Linked
+Data
+Platform
+Resources
+(
+<dfn>
+<abbr title="Linked Data Platform Resources">
+LDPRs
+</abbr>
+</dfn>
+)
+are
+HTTP
+resources
+that
+conform
+to
+the
+simple
+patterns
+and
+conventions
+in
+this
+section.
+HTTP
+requests
+to
+access,
+modify,
+create
+or
+delete
+LDPRs
+are
+accepted
+and
+processed
+by
+LDPR
+servers.
+Most
+LDPRs
+are
+domain-specific
+resources
+that
+contain
+data
+for
+an
+entity
+in
+some
+domain,
+which
+could
+be
+commercial,
+governmental,
+scientific,
+religious,
+or
+other.
+</p>
+<p>
+Some
+of
+the
+rules
+defined
+in
+this
+document
+provide
+clarification
+and
+refinement
+of
+the
+base
+Linked
+Data
+rules
+<del class="diff-old">[
+LINKED-DATA
+];
+</del>
+<ins class="diff-chg">[[LINKED-DATA]];
+</ins>
+others
+address
+additional
+needs.
+</p>
+<p>
+The
+rules
+for
+Linked
+Data
+Platform
+Resources
+address
+basic
+questions
+such
+as:
+</p>
+<ul>
+<li>
+What
+resource
+formats
+should
+be
+used?
+</li>
+<li>
+How
+is
+optimistic
+collision
+detection
+handled
+for
+updates?
+</li>
+<li>
+What
+should
+client
+expectations
+be
+for
+changes
+to
+linked-to
+resources,
+such
+as
+type
+changes?
+</li>
+<li>
+What
+can
+servers
+do
+to
+ease
+the
+burden
+of
+constraints
+for
+resource
+creation?
+</li>
+<li>
+<ins class="diff-new">How
+do
+I
+GET
+the
+entries
+of
+a
+large
+resources
+broken
+up
+into
+pages?
+</ins></li>
+</ul>
+<p>
+Additional
+informative
+guidance
+is
+available
+on
+the
+<a href="http://www.w3.org/2012/ldp/wiki/Deployment_Guide" class="external" title="Deployment Guide" rel="nofollow">
+working
+group's
+wiki
+</a>
+that
+addresses
+deployment
+questions
+such
+as:
+</p>
+<ul>
+<li>
+What
+literal
+value
+types
+should
+be
+used?
+</li>
+<li>
+Are
+there
+some
+typical
+vocabularies
+that
+should
+be
+reused?
+</li>
+</ul>
+<p>
+The
+following
+sections
+define
+the
+rules
+and
+guidelines
+for
+use
+of
+<del class="diff-old">LDPRs
+.
+</del>
+<ins class="diff-chg">LDPRs.
+This
+document
+also
+explains
+how
+to
+include
+information
+about
+each
+member
+in
+the
+resource’s
+own
+representation
+and
+how
+to
+paginate
+the
+resource
+representation
+if
+it
+gets
+too
+big.
+</ins>
+</p>
+<del class="diff-old">4.1
+</del>
+<section>
+<h2 id="ldpr-general">
+General
+</h2>
+<div id="ldpr-4_1_1" class="rule">
+4.1.1
+LDPR
+servers
+MUST
+at
+least
+be
+HTTP/1.1
+conformant
+servers
+<del class="diff-old">[
+HTTP11
+].
+</del>
+<ins class="diff-chg">[[!HTTP11]].
+</ins>
+</div>
+<div id="ldpr-4_1_2" class="rule">
+4.1.2
+LDPR
+servers
+MUST
+provide
+an
+RDF
+representation
+for
+<del class="diff-old">LDPRs
+.
+</del>
+<ins class="diff-chg">LDPRs.
+</ins>
+The
+HTTP
+<code>
+Request-URI
+</code>
+of
+the
+LDPR
+is
+typically
+the
+subject
+of
+most
+triples
+in
+the
+response.
+</div>
+<div id="ldpr-4_1_3" class="rule">
+4.1.3
+LDPR
+servers
+MAY
+host
+a
+mixture
+of
+LDPRs
+and
+<del class="diff-old">non-
+LDPRs
+.
+</del>
+<ins class="diff-chg">non-LDPRs.
+</ins>
+For
+example,
+it
+is
+common
+for
+LDPR
+servers
+to
+need
+to
+host
+binary
+or
+text
+resources
+that
+do
+not
+have
+useful
+RDF
+representations.
+</div>
+<div id="ldpr-4_1_4" class="rule">
+4.1.4
+<del class="diff-old">Clients
+can
+access
+an
+LDPR
+using
+multiple
+URLs,
+for
+example
+when
+DNS
+aliasing
+is
+used.
+An
+LDPR
+server
+MUST
+respond
+to
+each
+of
+those
+requests
+using
+a
+single
+consistent
+URL,
+a
+canonical
+URL,
+for
+the
+LDPR
+which
+may
+be
+found
+in
+the
+response's
+Location
+header
+and
+potentially
+also
+in
+the
+representation
+of
+the
+LDPR
+.
+Clients
+SHOULD
+use
+the
+canonical
+URL
+as
+an
+LDPR
+'s
+identity;
+for
+example,
+when
+determining
+if
+two
+URLs
+refer
+to
+the
+same
+resource
+clients
+need
+to
+compare
+the
+canonical
+URLs
+not
+the
+URLs
+used
+to
+access
+the
+resources.
+ISSUE-49
+Canonical
+URL
+-
+how
+to
+communicate
+its
+value
+to
+clients
+4.1.5
+</del>
+LDPRs
+SHOULD
+reuse
+existing
+vocabularies
+instead
+of
+creating
+their
+own
+duplicate
+vocabulary
+terms.
+In
+addition
+to
+this
+general
+rule,
+some
+specific
+cases
+are
+covered
+by
+other
+conformance
+rules.
+</div>
+<del class="diff-old">4.1.5.1
+</del>
+<div id="ldpr-4_1_4_1" class="rule">
+<ins class="diff-chg">4.1.4.1
+</ins>
+LDPR
+predicates
+SHOULD
+use
+standard
+vocabularies
+such
+as
+Dublin
+Core
+<del class="diff-old">[
+DC-TERMS
+],
+</del>
+<ins class="diff-chg">[[!DC-TERMS]],
+</ins>
+RDF
+<del class="diff-old">[
+RDF-PRIMER
+]
+</del>
+<ins class="diff-chg">[[!RDF-CONCEPTS]]
+</ins>
+and
+RDF
+Schema
+<del class="diff-old">[
+RDF-SCHEMA
+],
+</del>
+<ins class="diff-chg">[[!RDF-SCHEMA]],
+</ins>
+whenever
+possible.
+</div>
+<del class="diff-old">4.1.6
+LDPRs
+MUST
+use
+the
+predicate
+rdf:type
+to
+represent
+the
+concept
+of
+type.
+The
+use
+of
+non-standard
+type
+predicates,
+as
+well
+as
+dcterms:type
+,
+is
+discouraged,
+as
+it
+is
+not
+recommended
+by
+the
+Dublin
+Core
+Metadata
+Initiative
+for
+use
+with
+RDF
+resources
+[
+DC-RDF
+].
+4.1.7
+</del>
+<div id="ldpr-4_1_5" class="rule">
+<ins class="diff-chg">4.1.5
+</ins>
+LDPR
+representations
+SHOULD
+have
+at
+least
+one
+<code>
+rdf:type
+</code>
+set
+explicitly.
+<del class="diff-old">This
+</del>
+<ins class="diff-chg">&#160;This
+</ins>
+makes
+the
+representations
+much
+more
+useful
+to
+client
+applications
+that
+don’t
+support
+inferencing.
+</div>
+<del class="diff-old">4.1.8
+Predicate
+URIs
+used
+in
+LDPR
+representations
+SHOULD
+be
+HTTP
+URLs.
+These
+predicate
+URIs
+MUST
+identify
+LDPRs
+whose
+representations
+are
+retrievable.
+LDPR
+servers
+SHOULD
+provide
+an
+RDF
+Schema
+[
+RDF-SCHEMA
+]
+representation
+of
+these
+predicates.
+ISSUE-9
+Should
+properties
+used
+in
+LDPR
+representations
+be
+LDPRs
+?
+4.1.9
+LDPRs
+MUST
+use
+at
+least
+one
+RDF
+triple
+to
+represent
+a
+link
+(relationship)
+to
+another
+resource.
+In
+other
+words,
+having
+the
+source
+resource’s
+URI
+as
+the
+subject
+and
+the
+target
+resource’s
+URI
+as
+the
+object
+of
+the
+triple
+representing
+the
+link
+(relationship)
+is
+enough
+and
+does
+not
+require
+the
+creation
+of
+an
+intermediate
+link
+resource
+to
+describe
+the
+relationship.
+ISSUE-44
+4.1.9.
+is
+obscure
+or
+too
+restrictive
+4.1.10
+</del>
+<div id="ldpr-4_1_6" class="rule">
+<ins class="diff-chg">4.1.6
+</ins>
+LDPR
+servers
+MAY
+support
+standard
+representations
+beyond
+those
+necessary
+to
+conform
+to
+this
+specification.
+These
+could
+be
+other
+RDF
+formats,
+like
+N3
+or
+NTriples,
+but
+<del class="diff-old">non-
+RDF
+</del>
+<ins class="diff-chg">non-RDF
+</ins>
+formats
+like
+HTML
+<del class="diff-old">[
+HTML401
+]
+</del>
+<ins class="diff-chg">[[!HTML401]]
+</ins>
+and
+JSON
+<del class="diff-old">[
+RFC4627
+]
+</del>
+<ins class="diff-chg">[[!RFC4627]]
+</ins>
+would
+<del class="diff-old">be
+</del>
+likely
+be
+common.
+</div>
+<del class="diff-old">4.1.11
+</del>
+<div id="ldpr-4_1_7" class="rule">
+<ins class="diff-chg">4.1.7
+</ins>
+LDPRs
+MAY
+be
+created,
+updated
+and
+deleted
+using
+methods
+not
+defined
+in
+this
+document,
+for
+example
+through
+application-specific
+means,
+SPARQL
+UPDATE,
+etc.
+<del class="diff-old">[
+SPARQL-UPDATE
+],
+</del>
+<ins class="diff-chg">[[!SPARQL-UPDATE]],
+</ins>
+as
+long
+as
+those
+methods
+do
+not
+conflict
+with
+this
+specification's
+normative
+requirements.
+</div>
+<del class="diff-old">4.1.12
+BPR
+</del>
+<div id="ldpr-4_1_8" class="rule">
+<ins class="diff-chg">4.1.8
+LDPR
+</ins>
+server
+responses
+MUST
+use
+entity
+tags
+(either
+weak
+or
+strong
+ones)
+as
+response
+<code>
+ETag
+</code>
+header
+values.
+</div>
+<del class="diff-old">ISSUE-15
+sharing
+binary
+resources
+and
+metadata
+ISSUE-16
+Redirection
+of
+non-information
+resources
+to
+LDPRs
+ISSUE-19
+Adressing
+more
+error
+cases
+</del>
+<div class="ldp-issue-pending">
+<div class="ldp-issue-title">
+<a href="http://www.w3.org/2012/ldp/track/issues/32">
+ISSUE-32
+</a>
+</div>
+How
+can
+clients
+discover
+that
+a
+resource
+is
+an
+LDPR
+or
+<del class="diff-old">LDPC
+,
+</del>
+<ins class="diff-chg">LDPC,
+</ins>
+and
+what
+features
+are
+supported?
+</div>
+<del class="diff-old">ISSUE-33
+Pagination
+for
+non-container
+resources
+4.1.13
+</del>
+<div id="ldpr-4_1_9" class="rule">
+<ins class="diff-chg">4.1.9
+</ins>
+LDPR
+servers
+SHOULD
+enable
+simple
+creation
+and
+modification
+of
+<del class="diff-old">LDPRs
+.
+</del>
+<ins class="diff-chg">LDPRs.
+</ins>
+It
+is
+common
+for
+LDPR
+servers
+to
+put
+restrictions
+on
+representations
+–
+for
+example,
+the
+range
+of
+<code>
+rdf:type
+</code>
+predicates,
+datatypes
+of
+the
+objects
+of
+predicates,
+and
+the
+number
+of
+occurrences
+of
+predicates
+in
+an
+<del class="diff-old">LDPR
+,
+</del>
+<ins class="diff-chg">LDPR,
+</ins>
+but
+servers
+SHOULD
+minimize
+those
+restrictions.
+<del class="diff-old">Enforcement
+</del>
+<ins class="diff-chg">&#160;Enforcement
+</ins>
+of
+more
+complex
+constraints
+will
+greatly
+restrict
+the
+set
+of
+clients
+that
+can
+modify
+resources.
+For
+some
+server
+applications,
+excessive
+constraints
+on
+modification
+of
+resources
+may
+be
+required.
+</div>
+<div class="ldp-issue-pending">
+<div class="ldp-issue-title">
+<a href="http://www.w3.org/2012/ldp/track/issues/57">
+<ins class="diff-new">ISSUE-57
+</ins></a>
+</div>
+<ins class="diff-chg">How
+can
+a
+client
+determine
+that
+it
+is
+in
+communication
+with
+an
+LDP
+server?
+</ins></div><div id="ldpr-4_1_10" class="rule"><ins class="diff-chg">
+4.1.10
+LDPR
+servers
+MUST
+advertise
+their
+LDP
+support
+by
+exposing
+a
+HTTP
+</ins><code><ins class="diff-chg">
+Link
+</ins></code><ins class="diff-chg">
+header
+with
+a
+target
+URI
+of
+</ins><code><ins class="diff-chg">
+http://www.w3.org/ns/ldp/Resource
+</ins></code>,<ins class="diff-chg">
+and
+a
+link
+relation
+type
+of
+</ins><code><ins class="diff-chg">
+type
+</ins></code><ins class="diff-chg">
+(that
+is,
+</ins><code><ins class="diff-chg">
+rel="type"
+</ins></code><ins class="diff-chg">
+)
+in
+all
+responses
+to
+requests
+made
+to
+the
+resource's
+HTTP
+</ins><code><ins class="diff-chg">
+Request-URI
+</ins></code>.<ins class="diff-chg">
+This
+is
+notionally
+equivalent
+to
+the
+presence
+of
+a
+</ins><var><ins class="diff-chg">
+(subject-URI,
+</ins><code><ins class="diff-chg">
+rdf:type
+</ins></code>,<code><ins class="diff-chg">
+ldp:Resource
+</ins></code><ins class="diff-chg">
+)
+</ins></var><ins class="diff-chg">
+triple
+in
+the
+resource.
+The
+HTTP
+</ins><code><ins class="diff-chg">
+Link
+</ins></code><ins class="diff-chg">
+header
+is
+the
+method
+by
+which
+servers
+assert
+their
+support
+for
+the
+LDP
+spec
+in
+a
+way
+that
+clients
+can
+introspect
+dynamically
+at
+run-time.
+Conservative
+clients
+should
+note
+that
+a
+server
+can
+host
+a
+mixture
+of
+LDPRs
+and
+other
+resources,
+and
+therefore
+there
+is
+no
+implication
+that
+LDP
+support
+advertised
+on
+one
+HTTP
+</ins><code><ins class="diff-chg">
+Request-URI
+</ins></code><ins class="diff-chg">
+means
+that
+other
+resources
+on
+the
+same
+server
+are
+also
+LDPRs.
+Each
+HTTP
+</ins><code><ins class="diff-chg">
+Request-URI
+</ins></code><ins class="diff-chg">
+needs
+to
+be
+individually
+introspected
+by
+a
+conservative
+client,
+in
+the
+absence
+of
+outside
+information.
+</ins></div><div class="ldp-issue-pending"><div class="ldp-issue-title">
+<del class="diff-old">4.2
+</del>
+<a href="http://www.w3.org/2012/ldp/track/issues/78">
+<ins class="diff-chg">ISSUE-78
+</ins></a></div><ins class="diff-chg">
+inferencing
+levels
+</ins></div><div id="ldpr-4_1_11" class="rule"><ins class="diff-chg">
+4.1.11
+LDPR
+servers
+MUST
+NOT
+require
+LDP
+clients
+to
+implement
+inferencing
+in
+order
+to
+recognize
+the
+subset
+of
+content
+defined
+by
+LDP.
+Other
+specifications
+built
+on
+top
+of
+LDP
+MAY
+require
+clients
+to
+implement
+inferencing
+[[!RDF-CONCEPTS]].
+The
+practical
+implication
+is
+that
+all
+content
+defined
+by
+LDP
+must
+be
+explicitly
+represented.
+</ins></div></section><section><h2 id="ldpr-HTTP_GET">
+HTTP
+GET
+</h2>
+<div id="ldpr-4_2_1" class="rule">
+4.2.1
+LDPR
+servers
+MUST
+support
+the
+HTTP
+<code>
+GET
+</code>
+Method
+for
+<del class="diff-old">LDPRs
+.
+</del>
+<ins class="diff-chg">LDPRs.
+</ins>
+</div>
+<div id="ldpr-4_2_2" class="rule">
+4.2.2
+LDPR
+servers
+MUST
+provide
+a
+<code>
+text/turtle
+</code>
+representation
+of
+the
+requested
+LDPR
+<del class="diff-old">[
+TURTLE
+].
+</del>
+<ins class="diff-chg">[[!TURTLE]].
+</ins>
+</div>
+<div id="ldpr-4_2_3" class="rule">
+4.2.3
+LDPR
+servers
+MAY
+provide
+representations
+of
+the
+requested
+LDPR
+beyond
+those
+necessary
+to
+conform
+to
+this
+specification,
+using
+standard
+HTTP
+content
+negotiation.
+If
+the
+client
+does
+not
+indicate
+a
+preference,
+<code>
+text/turtle
+</code>
+MUST
+be
+returned.
+</div>
+<div id="ldpr-4_2_4" class="rule">
+4.2.4
+In
+the
+absence
+of
+special
+knowledge
+of
+the
+application
+or
+domain,
+LDPR
+clients
+MUST
+assume
+that
+any
+LDPR
+can
+have
+multiple
+values
+for
+<code>
+rdf:type
+</code>.
+</div>
+<div id="ldpr-4_2_5" class="rule">
+4.2.5
+In
+the
+absence
+of
+special
+knowledge
+of
+the
+application
+or
+domain,
+LDPR
+clients
+MUST
+assume
+that
+the
+<code>
+rdf:type
+</code>
+values
+of
+a
+given
+LDPR
+can
+change
+over
+time.
+</div>
+<del class="diff-old">4.3
+</del>
+</section>
+<section>
+<h2 id="ldpr-HTTP_POST">
+HTTP
+POST
+</h2>
+<p>
+This
+specification
+adds
+no
+new
+requirements
+on
+HTTP
+<code>
+POST
+</code>
+for
+LDPRs
+<del class="diff-old">.
+</del>
+<ins class="diff-chg">only
+when
+the
+LDPR
+supports
+that
+method.
+This
+specification
+does
+not
+impose
+any
+new
+requirement
+to
+support
+that
+method,
+and
+[[!HTTP11]]
+makes
+it
+optional
+</ins>
+</p>
+<p>
+<ins class="diff-chg">Creation
+of
+LDPRs
+is
+done
+via
+HTTP
+</ins><code><ins class="diff-chg">
+POST
+</ins></code><ins class="diff-chg">
+to
+a
+LDPC,
+see
+the
+</ins><a href="#ldpc-HTTP_POST" class="sectionRef">
+<del class="diff-old">4.4
+</del>
+</a>
+<ins class="diff-chg">in
+the
+LDPC
+parent
+section
+for
+more
+details.
+</ins></p></section><section><h2 id="ldpr-HTTP_PUT">
+HTTP
+PUT
+</h2>
+<p>
+This
+specification
+imposes
+the
+following
+new
+requirements
+on
+HTTP
+<code>
+PUT
+</code>
+for
+LDPRs
+only
+when
+the
+LDPR
+supports
+that
+method.
+This
+specification
+does
+not
+impose
+any
+new
+requirement
+to
+support
+that
+method,
+and
+<del class="diff-old">[
+HTTP11
+]
+</del>
+<ins class="diff-chg">[[!HTTP11]]
+</ins>
+makes
+it
+optional.
+</p>
+<div id="ldpr-4_4_1" class="rule">
+4.4.1
+If
+HTTP
+<code>
+PUT
+</code>
+is
+performed
+on
+an
+existing
+resource,
+LDPR
+servers
+MUST
+replace
+the
+entire
+persistent
+state
+of
+the
+identified
+resource
+with
+the
+entity
+representation
+in
+the
+body
+of
+the
+request.
+<del class="diff-old">BPR
+</del>
+<ins class="diff-chg">LDPR
+</ins>
+servers
+MAY
+ignore
+server
+managed
+properties
+such
+as
+<code>
+dcterms:modified
+</code>
+and
+<code>
+dcterms:creator
+</code>
+if
+they
+are
+not
+under
+client
+control.
+Any
+LDPR
+servers
+that
+wish
+to
+support
+a
+more
+sophisticated
+merge
+of
+data
+provided
+by
+the
+client
+with
+existing
+state
+stored
+on
+the
+server
+for
+a
+resource
+MUST
+use
+HTTP
+<del class="diff-old">PATCH,
+</del>
+<code>
+<ins class="diff-chg">PATCH
+</ins></code>,
+not
+HTTP
+<del class="diff-old">PUT.
+</del>
+<code>
+<ins class="diff-chg">PUT
+</ins></code>.
+</div>
+<div id="ldpr-4_4_2" class="rule">
+4.4.2
+LDPR
+clients
+SHOULD
+use
+the
+HTTP
+<code>
+If-Match
+</code>
+header
+and
+HTTP
+<code>
+ETags
+</code>
+to
+ensure
+it
+isn’t
+modifying
+a
+resource
+that
+has
+changed
+since
+the
+client
+last
+retrieved
+its
+representation.
+LDPR
+servers
+SHOULD
+require
+the
+HTTP
+<code>
+If-Match
+</code>
+header
+and
+HTTP
+<code>
+ETags
+</code>
+to
+detect
+collisions.
+LDPR
+servers
+MUST
+respond
+with
+status
+code
+412
+(Condition
+Failed)
+if
+<code>
+ETag
+</code>
+s
+fail
+to
+match
+<del class="diff-old">if
+</del>
+<ins class="diff-chg">when
+</ins>
+there
+are
+no
+other
+errors
+with
+the
+request
+<del class="diff-old">[
+HTTP11
+].
+</del>
+<ins class="diff-chg">[[!HTTP11]].
+LDPR
+servers
+that
+require
+conditional
+requests
+MUST
+respond
+with
+status
+code
+428
+(Precondition
+Required)
+when
+the
+absence
+of
+a
+precondition
+is
+the
+only
+reason
+for
+rejecting
+the
+request
+[[!RFC6585]].
+</ins>
+</div>
+<div id="ldpr-4_4_3" class="rule">
+4.4.3
+LDPR
+clients
+SHOULD
+always
+assume
+that
+the
+set
+of
+predicates
+for
+a
+resource
+of
+a
+particular
+type
+at
+an
+arbitrary
+server
+is
+open,
+in
+the
+sense
+that
+different
+resources
+of
+the
+same
+type
+may
+not
+all
+have
+the
+same
+set
+of
+predicates
+in
+their
+triples,
+and
+the
+set
+of
+predicates
+that
+are
+used
+in
+the
+state
+of
+any
+one
+resource
+is
+not
+limited
+to
+any
+pre-defined
+set.
+</div>
+<div id="ldpr-4_4_4" class="rule">
+4.4.4
+LDPR
+clients
+SHOULD
+assume
+that
+an
+LDPR
+server
+could
+discard
+triples
+whose
+predicates
+the
+server
+does
+not
+recognize
+or
+otherwise
+chooses
+not
+to
+persist.
+In
+other
+words,
+LDPR
+servers
+MAY
+restrict
+themselves
+to
+a
+known
+set
+of
+predicates,
+but
+LDPR
+clients
+MUST
+NOT
+restrict
+themselves
+to
+a
+known
+set
+of
+predicates
+when
+their
+intent
+is
+to
+perform
+a
+later
+HTTP
+<code>
+PUT
+</code>
+to
+update
+the
+resource.
+</div>
+<div id="ldpr-4_4_5" class="rule">
+4.4.5
+An
+LDPR
+client
+MUST
+preserve
+all
+triples
+retrieved
+using
+HTTP
+<code>
+GET
+</code>
+that
+it
+doesn’t
+change
+whether
+it
+understands
+the
+predicates
+or
+not,
+when
+its
+intent
+is
+to
+perform
+an
+update
+using
+HTTP
+<del class="diff-old">PUT.
+The
+</del>
+<code>
+<ins class="diff-chg">PUT
+</ins></code>.<ins class="diff-chg">
+&#160;The
+</ins>
+use
+of
+HTTP
+<code>
+PATCH
+</code>
+instead
+of
+HTTP
+<code>
+PUT
+</code>
+for
+update
+avoids
+this
+burden
+for
+clients
+<del class="diff-old">[
+RFC5789
+].
+</del>
+<ins class="diff-chg">[[RFC5789]].
+</ins>
+</div>
+<div id="ldpr-4_4_6" class="rule">
+4.4.6
+LDPR
+servers
+MAY
+choose
+to
+allow
+the
+creation
+of
+new
+resources
+using
+HTTP
+<del class="diff-old">PUT.
+</del>
+<code>
+<ins class="diff-chg">PUT
+</ins></code>.
+</div>
+<div id="ldpr-4_4_7" class="rule">
+4.4.7
+LDPR
+servers
+SHOULD
+allow
+clients
+to
+update
+resources
+without
+requiring
+detailed
+knowledge
+of
+server-specific
+constraints.
+<ins class="diff-new">&#160;
+</ins>
+This
+is
+a
+consequence
+of
+the
+requirement
+to
+<a href="#ldpr-4_1_9">
+enable
+simple
+creation
+and
+modification
+</a>
+of
+LPDRs.
+</div>
+<del class="diff-old">4.5
+</del>
+</section>
+<section>
+<h2 id="ldpr-HTTP_DELETE">
+HTTP
+DELETE
+</h2>
+<p>
+This
+specification
+imposes
+the
+following
+new
+requirements
+on
+HTTP
+<code>
+DELETE
+</code>
+for
+LDPRs
+only
+when
+the
+LDPR
+supports
+that
+method.
+This
+specification
+does
+not
+impose
+any
+new
+requirement
+to
+support
+that
+method,
+and
+<del class="diff-old">[
+HTTP11
+]
+</del>
+<ins class="diff-chg">[[!HTTP11]]
+</ins>
+makes
+it
+optional.
+</p>
+<p>
+<ins class="diff-chg">Additional
+requirements
+on
+HTTP
+</ins><code><ins class="diff-chg">
+DELETE
+</ins></code><ins class="diff-chg">
+of
+LDPRs
+within
+containers
+can
+be
+found
+in
+</ins><a href="ldpc-HTTP_DELETE"><ins class="diff-chg">
+section
+5.6
+</ins></a>.</p><div id="ldpr-4_5_1" class="rule">
+4.5.1
+LDPR
+servers
+MUST
+remove
+the
+resource
+identified
+by
+the
+<del class="diff-old">Request-URI.
+</del>
+<code>
+<ins class="diff-chg">Request-URI
+</ins></code>.
+After
+a
+successful
+HTTP
+<del class="diff-old">DELETE,
+</del>
+<code>
+<ins class="diff-chg">DELETE
+</ins></code>,
+a
+subsequent
+HTTP
+<code>
+GET
+</code>
+on
+the
+same
+<code>
+Request-URI
+</code>
+MUST
+result
+in
+a
+404
+(Not
+found)
+or
+410
+(Gone)
+status
+code.
+Clients
+SHOULD
+note
+that
+servers
+MAY
+reuse
+a
+URI
+under
+some
+circumstances.
+</div>
+<div id="ldpr-4_5_2" class="rule">
+4.5.2
+LDPR
+servers
+MAY
+alter
+the
+state
+of
+other
+resources
+as
+a
+result
+of
+an
+HTTP
+<code>
+DELETE
+</code>
+request.
+For
+example,
+it
+is
+acceptable
+for
+the
+server
+to
+remove
+triples
+from
+other
+resources
+whose
+subject
+or
+object
+is
+the
+deleted
+resource.
+It
+is
+also
+acceptable
+and
+common
+for
+LDPR
+servers
+to
+not
+do
+this
+–
+behavior
+is
+server
+application
+specific.
+</div>
+<del class="diff-old">4.6
+</del>
+</section>
+<section>
+<h2 id="ldpr-HTTP_HEAD">
+HTTP
+HEAD
+</h2>
+<p>
+<ins class="diff-chg">Note
+that
+certain
+LDP
+mechanisms,
+such
+as
+paging,
+rely
+on
+HTTP
+headers,
+and
+HTTP
+generally
+requires
+that
+</ins><code><ins class="diff-chg">
+HEAD
+</ins></code><ins class="diff-chg">
+responses
+include
+the
+same
+headers
+as
+</ins><code><ins class="diff-chg">
+GET
+</ins></code><ins class="diff-chg">
+responses.
+Thus,
+implementers
+should
+also
+carefully
+read
+</ins><a href="#ldpr-HTTP_GET" class="sectionRef"></a>.</p><div id="ldpr-4_6_1" class="rule">
+4.6.1
+LDPR
+servers
+MUST
+support
+the
+HTTP
+<code>
+HEAD
+</code>
+method.
+</div>
+<div id="ldpr-4_6_2" class="rule">
+4.6.2
+LDPR
+servers
+MUST
+<del class="diff-old">indicate
+their
+</del>
+support
+<del class="diff-old">for
+HTTP
+Methods
+by
+responding
+to
+a
+HTTP
+HEAD
+request
+on
+the
+LDPR
+’s
+URL
+with
+the
+HTTP
+Method
+tokens
+in
+</del>
+the
+HTTP
+response
+<del class="diff-old">header
+“
+Allow
+”.
+</del>
+<ins class="diff-chg">headers
+defined
+in
+</ins><a href="#ldpr-HTTP_OPTIONS" class="sectionRef">
+<del class="diff-old">4.7
+</del>
+</a>.
+</div>
+</section>
+<section>
+<h2 id="ldpr-HTTP_PATCH">
+HTTP
+PATCH
+</h2>
+<p>
+This
+specification
+imposes
+the
+following
+new
+requirements
+on
+HTTP
+<code>
+PATCH
+</code>
+for
+LDPRs
+only
+when
+the
+LDPR
+supports
+that
+method.
+This
+specification
+does
+not
+impose
+any
+new
+requirement
+to
+support
+that
+method,
+and
+<del class="diff-old">[
+HTTP11
+]
+</del>
+<ins class="diff-chg">[[!HTTP11]]
+</ins>
+makes
+it
+optional.
+</p>
+<div id="ldpr-4_7_1" class="rule">
+4.7.1
+LDPR
+servers
+MAY
+implement
+HTTP
+<code>
+PATCH
+</code>
+to
+allow
+modifications,
+especially
+partial
+replacement,
+of
+their
+resources
+<del class="diff-old">[
+RFC5789
+].
+</del>
+<ins class="diff-chg">[[!RFC5789]].
+</ins>
+No
+minimal
+set
+of
+patch
+document
+formats
+is
+mandated
+by
+this
+document.
+</div>
+<div id="ldpr-4_7_2" class="rule">
+4.7.2
+LDPR
+servers
+SHOULD
+allow
+clients
+to
+update
+resources
+without
+requiring
+detailed
+knowledge
+of
+server-specific
+constraints.
+<ins class="diff-new">&#160;
+</ins>
+This
+is
+a
+consequence
+of
+the
+requirement
+to
+<a href="#ldpr-4_1_9">
+enable
+simple
+creation
+and
+modification
+</a>
+of
+LPDRs.
+</div>
+<div id="ldpr-4_7_3" class="rule">
+4.7.3
+LDPR
+servers
+SHOULD
+NOT
+allow
+clients
+to
+create
+new
+resources
+using
+<del class="diff-old">PATCH.
+</del>
+<code>
+<ins class="diff-chg">PATCH
+</ins></code>.<a href="#ldpc-HTTP_POST"><code>
+POST
+</code>
+(to
+an
+<del class="diff-old">LDPC
+)
+</del>
+<ins class="diff-chg">LDPC)
+</ins>
+</a>
+and/or
+<a href="#ldpc-HTTP_PUT">
+<code>
+PUT
+</code>
+</a>
+should
+be
+used
+as
+the
+standard
+way
+to
+create
+new
+<del class="diff-old">LDPRs
+.
+</del>
+<ins class="diff-chg">LDPRs.
+</ins>
+</div>
+<div class="ldp-issue-pending">
+<div class="ldp-issue-title">
+<del class="diff-old">ISSUE-17
+</del>
+<a href="http://www.w3.org/2012/ldp/track/issues/32">
+<ins class="diff-chg">ISSUE-32
+</ins>
+</a>
+</div>
+<del class="diff-old">changesets
+as
+</del>
+<ins class="diff-chg">How
+can
+clients
+discover
+that
+</ins>
+a
+<del class="diff-old">recommended
+</del>
+<ins class="diff-chg">resource
+is
+an
+LDPR
+or
+LDPC,
+and
+what
+features
+are
+supported?
+</ins></div><div id="ldpr-4_7_4" class="rule"><ins class="diff-chg">
+4.7.4
+LDPR
+servers
+that
+support
+</ins><code>
+PATCH
+<del class="diff-old">format
+</del>
+</code>
+<ins class="diff-chg">MUST
+include
+an
+</ins><code><ins class="diff-chg">
+Accept-Patch
+</ins></code><ins class="diff-chg">
+HTTP
+response
+header
+[[!RFC5789]]
+on
+HTTP
+</ins><code><ins class="diff-chg">
+OPTIONS
+</ins></code><ins class="diff-chg">
+requests,
+listing
+patch
+document
+media
+type(s)
+supported
+by
+the
+server.
+</ins>
+</div>
+</section>
+<section>
+<h2 id="ldpr-HTTP_OPTIONS">
+<ins class="diff-chg">HTTP
+OPTIONS
+</ins></h2><p><ins class="diff-chg">
+This
+specification
+imposes
+the
+following
+new
+requirements
+on
+HTTP
+</ins><code><ins class="diff-chg">
+OPTIONS
+</ins></code><ins class="diff-chg">
+for
+LDPRs
+beyond
+those
+in
+[[!HTTP11]].
+Other
+sections
+of
+this
+specification,
+for
+example
+</ins><a href="#ldpr-HTTP_PATCH"><ins class="diff-chg">
+PATCH
+</ins></a>,<a href="#header-accept-post"><ins class="diff-chg">
+Accept-Post
+</ins></a><ins class="diff-chg">
+and
+</ins><a href="#ldpr-paging-HTTP_OPTIONS"><ins class="diff-chg">
+Paging
+</ins></a>,<ins class="diff-chg">
+add
+other
+requirements
+on
+</ins><code><ins class="diff-chg">
+OPTIONS
+</ins></code><ins class="diff-chg">
+responses.
+</ins></p><div class="ldp-issue-pending">
+<div class="ldp-issue-title">
+<del class="diff-old">ISSUE-27
+</del>
+<a href="http://www.w3.org/2012/ldp/track/issues/32">
+<ins class="diff-chg">ISSUE-32
+</ins>
+</a>
+</div>
+<del class="diff-old">Should
+</del>
+<ins class="diff-chg">How
+can
+clients
+discover
+that
+a
+resource
+is
+an
+LDPR
+or
+LDPC,
+and
+what
+features
+are
+supported?
+</ins></div><div id="ldpr-4_8_1" class="rule"><ins class="diff-chg">
+4.8.1
+LDPR
+servers
+MUST
+support
+</ins>
+the
+<del class="diff-old">PATCH
+method
+</del>
+<ins class="diff-chg">HTTP
+</ins><code><ins class="diff-chg">
+OPTIONS
+</ins></code><ins class="diff-chg">
+method.
+</ins></div><div id="ldpr-4_8_2" class="rule"><ins class="diff-chg">
+4.8.2
+LDPR
+servers
+MUST
+indicate
+their
+support
+for
+HTTP
+Methods
+by
+responding
+to
+a
+HTTP
+</ins><code><ins class="diff-chg">
+OPTIONS
+</ins></code><ins class="diff-chg">
+request
+on
+the
+LDPR’s
+URL
+with
+the
+HTTP
+Method
+tokens
+in
+the
+HTTP
+response
+header
+</ins><code><ins class="diff-chg">
+Allow
+</ins></code>.</div></section><section><h2 id="ldpr-Paging"><ins class="diff-chg">
+Paging
+</ins></h2><section class="informative"><h3 id="ldpr-PagingIntro"><ins class="diff-chg">
+Introduction
+</ins></h3><p><ins class="diff-chg">
+It
+sometimes
+happens
+that
+a
+resource
+is
+too
+large
+to
+reasonably
+transmit
+its
+representation
+in
+a
+single
+HTTP
+response.
+This
+will
+</ins>
+be
+<del class="diff-old">used,
+</del>
+<ins class="diff-chg">especially
+true
+if
+the
+resource
+representation
+includes
+many
+triples
+both
+from
+its
+own
+representation
+and
+from
+the
+representations
+of
+any
+of
+its
+members.
+A
+client
+could
+anticipate
+that
+a
+resource
+will
+be
+too
+large
+-
+for
+example,
+a
+client
+tool
+that
+accesses
+defects
+may
+assume
+that
+an
+individual
+defect
+will
+usually
+be
+of
+sufficiently
+constrained
+size
+that
+it
+makes
+sense
+to
+request
+all
+of
+it
+at
+once,
+but
+that
+the
+container
+of
+all
+the
+defects
+ever
+created
+will
+typically
+be
+too
+big.
+Alternatively,
+a
+server
+could
+recognize
+that
+a
+resource
+that
+has
+been
+requested
+is
+too
+big
+to
+return
+in
+a
+single
+message.
+</ins></p><p><ins class="diff-chg">
+To
+address
+this
+problem,
+LDPRs
+should
+support
+a
+technique
+called
+Paging.
+&#160;Paging
+can
+be
+achieved
+with
+a
+simple
+RDF
+pattern.
+For
+each
+resource,
+</ins><code><ins class="diff-chg">
+&lt;resourceURL&gt;
+</ins></code>,<ins class="diff-chg">
+we
+define
+a
+new
+'first
+page'
+resource.
+In
+this
+example,
+its
+URL
+will
+be
+</ins><code><ins class="diff-chg">
+&lt;containerURL&gt;?firstPage
+</ins></code>,<ins class="diff-chg">
+but
+servers
+are
+free
+to
+construct
+the
+URL
+</ins>
+as
+<del class="diff-old">opposed
+</del>
+<ins class="diff-chg">they
+see
+fit.
+The
+triples
+in
+the
+representation
+of
+the
+each
+page
+are
+a
+subset
+of
+the
+triples
+in
+the
+resource
+-
+same
+subject,
+predicate
+and
+object.
+</ins></p><p><ins class="diff-chg">
+LDPR
+servers
+may
+respond
+</ins>
+to
+<del class="diff-old">POST
+</del>
+<ins class="diff-chg">requests
+for
+a
+resource
+by
+redirecting
+the
+client
+to
+the
+first
+page
+resource
+–
+using
+a
+303
+“See
+Other”
+redirect
+to
+the
+actual
+URL
+for
+the
+page
+resource.
+</ins></p><p><ins class="diff-chg">
+Looking
+at
+an
+example
+resource
+representing
+JohnZSmith's
+net
+worth,
+we’ll
+split
+the
+response
+across
+two
+pages.
+&#160;
+To
+find
+the
+URL
+of
+the
+first
+page,
+the
+client
+makes
+a
+</ins><code><ins class="diff-chg">
+OPTIONS
+</ins></code><ins class="diff-chg">
+request
+to
+the
+resource's
+URL,
+and
+in
+the
+response
+looks
+for
+a
+HTTP
+</ins><code><ins class="diff-chg">
+Link
+</ins></code><ins class="diff-chg">
+header
+</ins>
+with
+<code>
+<ins class="diff-new">rel="first"
+</ins></code><ins class="diff-new">
+;
+the
+target
+URI
+in
+the
+header
+is
+the
+URL
+of
+the
+first
+page
+resource.
+The
+client
+then
+requests
+the
+first
+page
+as
+</ins><code><ins class="diff-new">
+http://example.org/netWorth/nw1/assetContainer/?firstPage
+</ins></code>:</p><pre class="example"><ins class="diff-new">
+# The following is the representation of
+#    http://example.org/netWorth/nw1/assetContainer/?firstPage
+@prefix rdf: &lt;http://www.w3.org/1999/02/22-rdf-syntax-ns#&gt;.
+@prefix dcterms: &lt;http://purl.org/dc/terms/&gt;.
+@prefix ldp: &lt;http://www.w3.org/ns/ldp#&gt;.
+@prefix o: &lt;http://example.org/ontology/&gt;.
+&lt;http://example.org/netWorth/nw1/assetContainer/&gt;
+   a ldp:Container;
+   dcterms:title "The assets of JohnZSmith";
+   ldp:membershipSubject &lt;http://example.org/netWorth/nw1&gt;;
+   ldp:membershipPredicate o:asset.
+&lt;http://example.org/netWorth/nw1/assetContainer/?firstPage&gt;
+   a ldp:Page;
+   ldp:pageOf &lt;http://example.org/netWorth/nw1/assetContainer/&gt;;
+   ldp:nextPage &lt;http://example.org/netWorth/nw1/assetContainer/?p=2&gt;.
+ 
+&lt;http://example.org/netWorth/nw1&gt;
+    a o:NetWorth;
+        o:asset
+        &lt;http://example.org/netWorth/nw1/assetContainer/a1&gt;,
+        &lt;http://example.org/netWorth/nw1/assetContainer/a4&gt;,
+        &lt;http://example.org/netWorth/nw1/assetContainer/a3&gt;,
+        &lt;http://example.org/netWorth/nw1/assetContainer/a2&gt;.
+&lt;http://example.org/netWorth/nw1/assetContainer/a1&gt;
+   a o:Stock;
+   o:value 100.00.
+&lt;http://example.org/netWorth/nw1/assetContainer/a2&gt;
+   a o:Cash;
+   o:value 50.00.
+# server initially supplied no data for a3 and a4 in this response
+</ins></pre><p><ins class="diff-new">
+The
+following
+example
+is
+the
+result
+of
+retrieving
+the
+representation
+for
+the
+next
+page:
+</ins></p><pre class="example"><ins class="diff-new">
+# The following is the representation of
+#  http://example.org/netWorth/nw1/assetContainer/?p=2
+@prefix rdf: &lt;http://www.w3.org/1999/02/22-rdf-syntax-ns#&gt;.
+@prefix dcterms: &lt;http://purl.org/dc/terms/&gt;.
+@prefix ldp: &lt;http://www.w3.org/ns/ldp#&gt;.
+@prefix o: &lt;http://example.org/ontology/&gt;.
+&lt;http://example.org/netWorth/nw1/assetContainer/&gt;
+   a ldp:Container;
+   dcterms:title "The assets of JohnZSmith";
+   ldp:membershipSubject &lt;http://example.org/netWorth/nw1&gt;;
+   ldp:membershipPredicate o:asset.
+&lt;http://example.org/netWorth/nw1/assetContainer/?p=2&gt;
+   a ldp:Page;
+   ldp:pageOf &lt;http://example.org/netWorth/nw1/assetContainer/&gt;;
+   ldp:nextPage rdf:nil.
+&lt;http://example.org/netWorth/nw1&gt;
+   a o:NetWorth;
+   o:asset 
+      &lt;http://example.org/netWorth/nw1/assetContainer/a5&gt;.
+&lt;http://example.org/netWorth/nw1/assetContainer/a5&gt;
+   a o:Stock;
+   dcterms:title "Big Co.";
+   o:value 200.02.
+</ins></pre><p><ins class="diff-new">
+In
+this
+example,
+there
+is
+only
+one
+member
+in
+the
+container
+in
+the
+final
+page.
+&#160;To
+indicate
+this
+is
+the
+last
+page,
+</ins>
+a
+<del class="diff-old">given
+mime
+type?
+</del>
+<ins class="diff-chg">value
+of
+</ins><code><ins class="diff-chg">
+rdf:nil
+</ins></code><ins class="diff-chg">
+is
+used
+for
+the
+</ins><code><ins class="diff-chg">
+ldp:nextPage
+</ins></code><ins class="diff-chg">
+predicate
+of
+the
+page
+resource.
+</ins></p><p><ins class="diff-chg">
+LDPC
+guarantees
+that
+any
+and
+all
+the
+triples
+about
+the
+members
+will
+be
+on
+the
+same
+page
+as
+the
+membership
+triple
+for
+the
+member.
+</ins></p></section><section><h3 id="ldpr-PagingGET"><ins class="diff-chg">
+HTTP
+GET
+</ins></h3><p><ins class="diff-chg">
+In
+addition
+to
+the
+requirements
+set
+forth
+in
+section
+(HTTP
+</ins><code><ins class="diff-chg">
+GET
+</ins></code><ins class="diff-chg">
+),
+LDPR
+servers
+that
+support
+paging
+must
+also
+follow
+the
+requirements
+in
+this
+section
+</ins></p><div id="ldpr-pagingGET-1" class="rule"><ins class="diff-chg">
+4.9.2.1
+LDPR
+servers
+SHOULD
+allow
+clients
+to
+retrieve
+large
+LDPRs
+in
+pages.
+In
+responses
+to
+</ins><code><ins class="diff-chg">
+GET
+</ins></code><ins class="diff-chg">
+requests
+with
+an
+LDPR
+as
+the
+</ins><code><ins class="diff-chg">
+Request-URI
+</ins></code>,<ins class="diff-chg">
+LDPR
+servers
+that
+support
+paging
+SHOULD
+provide
+an
+HTTP
+</ins><code><ins class="diff-chg">
+Link
+</ins></code><ins class="diff-chg">
+header
+whose
+target
+URI
+is
+the
+first
+page
+resource,
+and
+whose
+link
+relation
+type
+is
+</ins><code><ins class="diff-chg">
+first
+</ins></code><ins class="diff-chg">
+[[!RFC5988]].
+This
+is
+the
+mechanism
+by
+which
+clients
+discover
+the
+URL
+of
+the
+first
+page.
+If
+no
+such
+</ins><code><ins class="diff-chg">
+Link
+</ins></code><ins class="diff-chg">
+header
+is
+present,
+then
+conservative
+clients
+will
+assume
+that
+the
+LDPR
+does
+not
+support
+paging.
+For
+example,
+if
+there
+is
+a
+LDPR
+with
+URL
+</ins><code><ins class="diff-chg">
+&lt;resourceURL&gt;
+</ins></code><ins class="diff-chg">
+that
+supports
+paging
+and
+whose
+first
+page
+URL
+is
+</ins><code><ins class="diff-chg">
+&lt;resourceURL&gt;?theFirstPage
+</ins></code>,<ins class="diff-chg">
+then
+the
+corresponding
+link
+header
+would
+be
+</ins><code><ins class="diff-chg">
+Link:
+&lt;?theFirstPage&gt;;rel="first"
+</ins></code>.<ins class="diff-chg">
+The
+representation
+for
+any
+page,
+including
+the
+first,
+will
+include
+the
+URL
+for
+the
+next
+page.&#160;See
+</ins><a href="#ldpr-paging" class= "sectionRef"></a><ins class="diff-chg">
+for
+additional
+details.
+</ins></div><div id="ldpr-pagingGET-2" class="rule"><ins class="diff-chg">
+4.9.2.2
+LDPR
+servers
+MAY
+split
+the
+response
+representation
+of
+any
+LDPR.
+This
+is
+known
+as
+server-initiated
+paging.
+See
+</ins><a href="#ldpr-paging" class="sectionRef"></a><ins class="diff-chg">
+for
+additional
+details.
+</ins>
+</div>
+<div id="ldpr-pagingGET-3" class="rule">
+<ins class="diff-new">4.9.2.3
+LDPR
+servers
+that
+initiate
+paging
+SHOULD
+respond
+to
+requests
+for
+a
+LDPR
+by
+redirecting
+the
+client
+to
+the
+first
+page
+resource
+using
+a
+</ins><code><ins class="diff-new">
+303
+See
+Other
+</ins></code><ins class="diff-new">
+response
+with
+an
+HTTP
+</ins><code><ins class="diff-new">
+Location
+</ins></code><ins class="diff-new">
+header
+providing
+the
+first
+page
+resource
+URL.
+</ins>
+</div>
+<div id="ldpr-pagingGET-4" class="rule">
+<ins class="diff-new">4.9.2.4
+LDPR
+servers
+that
+support
+paging
+MUST
+include
+in
+the
+page
+representation
+a
+representation
+for
+the
+LDPR,
+such
+that:
+</ins>
+</div>
+<div id="ldpr-pagingGET-5" class="rule">
+<ins class="diff-chg">4.9.2.5
+The
+page
+resource
+representation
+SHOULD
+have
+one
+triple
+to
+indicate
+its
+type,
+whose
+subject
+is
+the
+URL
+of
+the
+page,
+whose
+predicate
+is
+</ins><code><ins class="diff-chg">
+rdf:type
+</ins></code><ins class="diff-chg">
+and
+object
+is
+</ins><code><ins class="diff-chg">
+ldp:Page
+</ins></code>.<ins class="diff-chg">
+It
+also
+SHOULD
+have
+1
+triple
+to
+indicate
+the
+resource
+it
+is
+paging,
+whose
+&#160;subject
+is
+the
+URL
+of
+the
+page,
+predicate
+is
+</ins><code><ins class="diff-chg">
+ldp:pageOf
+</ins></code>,<ins class="diff-chg">
+and
+object
+is
+the
+URL
+of
+the
+LDPC.
+</ins></div><div id="ldpr-pagingGET-6" class="rule"><ins class="diff-chg">
+4.9.2.6
+The
+page
+resource
+representation
+MUST
+have
+one
+triple
+with
+the
+subject
+of
+the
+page,
+predicate
+of
+</ins><code><ins class="diff-chg">
+ldp:nextPage
+</ins></code><ins class="diff-chg">
+and
+object
+being
+the
+URL
+for
+the
+subsequent
+page.
+</ins></div><div id="ldpr-pagingGET-7" class="rule"><ins class="diff-chg">
+4.9.2.7
+The
+last
+page
+resource
+representation
+MUST
+have
+one
+triple
+with
+the
+subject
+of
+the
+last
+page,
+predicate
+of
+</ins><code><ins class="diff-chg">
+ldp:nextPage
+</ins></code><ins class="diff-chg">
+and
+object
+being
+</ins><code><ins class="diff-chg">
+rdf:nil
+</ins></code>.</div></section><section><h3 id="ldpr-paging-HTTP_OPTIONS"><ins class="diff-chg">
+HTTP
+OPTIONS
+</ins></h3><div class="ldp-issue-pending"><div class="ldp-issue-title">
+<del class="diff-old">5.
+Linked
+Data
+Platform
+Containers
+</del>
+<a href="http://www.w3.org/2012/ldp/track/issues/32">
+<ins class="diff-chg">ISSUE-32
+</ins></a>
+<del class="diff-old">5.1
+Informative
+</del>
+</div>
+<ins class="diff-chg">How
+can
+clients
+discover
+that
+a
+resource
+is
+an
+LDPR
+or
+LDPC,
+and
+what
+features
+are
+supported?
+</ins></div><div id="ldpr-4_9_3_1" class="rule"><ins class="diff-chg">
+4.9.3.1
+LDPR
+servers
+MUST
+indicate
+their
+support
+for
+client-initiated
+paging
+by
+responding
+to
+a
+HTTP
+</ins><code><ins class="diff-chg">
+OPTIONS
+</ins></code><ins class="diff-chg">
+request
+on
+the
+LDPR’s
+URL
+with
+the
+HTTP
+response
+header
+for
+link
+relations
+using
+the
+header
+name
+of
+</ins><code><ins class="diff-chg">
+Link
+</ins></code><ins class="diff-chg">
+and
+link
+relation
+type
+</ins><code><ins class="diff-chg">
+first
+</ins></code><ins class="diff-chg">
+[[!RFC5988]].
+</ins></div></section></section><section><h2 id="ldpr-inlining"><ins class="diff-chg">
+Resource
+Inlining:
+Representing
+Multiple
+Resources
+in
+a
+Response
+</ins></h2><div class="atrisk"><p class="atrisktext"><ins class="diff-chg">
+Feature
+At
+Risk
+</ins></p><p><ins class="diff-chg">
+The
+LDP
+Working
+Group
+proposes
+incorporation
+of
+the
+features
+described
+in
+this
+section.
+</ins></p><ul><li><ins class="diff-chg">
+The
+addition
+of
+</ins><a><ins class="diff-chg">
+resource
+inlining
+</ins></a><ins class="diff-chg">
+to
+save
+application
+latency
+and
+server/network
+load
+in
+controlled
+environments.
+</ins></li></ul><p><ins class="diff-chg">
+Feedback,
+both
+positive
+and
+negative,
+is
+invited
+by
+sending
+email
+to
+the
+mailing
+list
+in
+</ins><a href="#sotd"><ins class="diff-chg">
+Status
+of
+This
+Document
+</ins></a>.</p></div><section class="informative"><h3 id="ldpr-InliningIntro"><ins class="diff-chg">
+Introduction
+</ins>
+</h3>
+<p>
+<ins class="diff-new">Servers
+whose
+resources
+are
+relatively
+granular
+may
+wish
+to
+optimistically
+provide
+more
+information
+in
+a
+response
+than
+what
+the
+client
+actually
+requested,
+in
+order
+to
+reduce
+the
+average
+number
+of
+client
+application
+HTTP
+flows.
+LDP
+provides
+some
+basic
+building
+blocks
+to
+enable
+this,
+that
+implementations
+can
+re-use
+to
+build
+complete
+solutions,
+and
+they
+may
+serve
+as
+complete
+solutions
+in
+applications
+with
+sufficient
+controls
+on
+resource
+content.
+These
+building
+blocks
+are
+</ins><a><ins class="diff-new">
+resource
+inlining
+</ins></a><ins class="diff-new">
+and
+</ins><a><ins class="diff-new">
+member
+inlining
+</ins></a>.</p><p><ins class="diff-new">
+LDP
+does
+not
+provide
+clients
+with
+any
+way
+to
+detect
+whether
+or
+not
+the
+server
+is
+capable
+of
+inlining
+(all
+its
+resources
+or
+any
+specific
+resource),
+nor
+does
+it
+provide
+clients
+with
+any
+way
+to
+influence
+which
+(if
+any)
+resources
+are
+inlined
+in
+any
+given
+response.
+</ins></p><p><ins class="diff-new">
+Servers
+can
+return
+extra
+triples
+on
+any
+response,
+but
+fail
+to
+meet
+the
+definition
+of
+</ins><a><ins class="diff-new">
+resource
+inlining
+</ins></a>,<ins class="diff-new">
+by
+either
+returning
+a
+subset
+of
+the
+other
+resource(s)
+triples
+or
+by
+failing
+to
+assert
+that
+all
+triples
+were
+included
+(even
+through
+they
+were).
+Clients
+might
+still
+find
+the
+extra
+information
+useful,
+but
+the
+only
+way
+for
+clients
+to
+be
+sure
+they
+had
+all
+available
+information
+would
+be
+to
+make
+a
+HTTP
+</ins><code><ins class="diff-new">
+GET
+</ins></code><ins class="diff-new">
+request
+against
+all
+the
+other
+resource(s).
+In
+some
+applications,
+knowing
+that
+these
+requests
+are
+unnecessary
+saves
+significant
+latency
+and
+server/network
+load.
+</ins></p></section><section class="informative"><h3 id="ldpr-InliningWarnings"><ins class="diff-new">
+Use
+with
+Care
+</ins></h3><div class="ldp-issue-pending"><div class="ldp-issue-title">
+<del class="diff-old">This
+</del>
+<a href="http://www.w3.org/2012/ldp/track/issues/58">
+<ins class="diff-chg">ISSUE-58
+</ins></a></div><ins class="diff-chg">
+Action
+87:
+Add
+an
+informative
+</ins>
+section
+<del class="diff-old">is
+non-normative.
+</del>
+<ins class="diff-chg">on
+the
+possible
+dangers
+of
+inlining
+resources
+</ins></div><p><ins class="diff-chg">
+The
+building
+blocks
+LDP
+provides
+can
+only
+be
+safely
+used
+if
+certain
+assumptions
+hold.
+Said
+another
+way,
+resource
+inlining
+solves
+a
+subset
+of
+scenarios,
+not
+all
+scenarios
+in
+the
+general
+case
+—
+so
+if
+you
+care
+about
+any
+of
+the
+following
+in
+a
+given
+application,
+your
+server
+should
+avoid
+returning
+</ins><em><ins class="diff-chg">
+any
+</ins>
+</em>
+<ins class="diff-chg">triples
+beyond
+those
+found
+at
+the
+HTTP
+</ins><code><ins class="diff-chg">
+Request-URI
+</ins></code>.</p><ul><li><p><ins class="diff-chg">
+Provenance
+is
+lost:
+because
+RDF
+graphs
+from
+multiple
+HTTP
+resources
+are
+merged
+in
+the
+response
+without
+attributing
+each
+statement
+to
+its
+originating
+graph
+(i.e.
+without
+quotation),
+it
+is
+impossible
+for
+a
+client
+to
+reliably
+know
+which
+triples
+came
+from
+which
+HTTP
+resource(s).
+A
+general
+solution
+allowing
+quotation
+is
+RDF
+Datasets;
+that
+is
+expected
+to
+be
+standardized
+independently,
+and
+can
+be
+used
+in
+these
+cases
+once
+it
+is
+available.
+</ins></p></li><li><p><ins class="diff-chg">
+The
+response
+may
+contain
+contradictions
+that
+are
+trivially
+obvious
+(or
+subtle),
+and
+those
+may
+or
+may
+not
+be
+a
+problem
+at
+the
+application
+level.
+For
+a
+trivial
+example,
+two
+triples
+may
+have
+identical
+subjects
+and
+predicates
+but
+different
+objects:
+"75F
+is
+too
+hot";
+"75F
+is
+too
+cold".
+Again,
+quotation
+via
+RDF
+Datasets
+(or
+any
+equivalent
+mechanism)
+is
+believed
+to
+provide
+a
+long
+term
+solution
+once
+standardized.
+</ins>
+</p>
+</li>
+</ul>
+</section>
+<section>
+<h3 id="ldpr-InliningGET">
+<ins class="diff-new">HTTP
+GET
+</ins></h3><p><ins class="diff-new">
+In
+addition
+to
+the
+requirements
+set
+forth
+in
+other
+sections,
+LDPR
+servers
+that
+support
+</ins><a><ins class="diff-new">
+resource
+inlining
+</ins></a><ins class="diff-new">
+must
+also
+follow
+the
+requirements
+in
+this
+section.
+</ins></p><div class="ldp-issue-pending"><div class="ldp-issue-title"><a href="http://www.w3.org/2012/ldp/track/issues/58"><ins class="diff-new">
+ISSUE-58
+</ins></a></div><ins class="diff-new">
+Action
+89:
+Add
+a
+predicate
+ldp:inlinedResource
+the
+object
+of
+which
+is
+a
+URI
+of
+a
+linked
+resource
+that
+is
+fully
+inlined,
+marked
+as
+AT
+RISK.
+</ins></div><div id="ldpr-4_10_3_1" class="rule"><ins class="diff-new">
+4.10.3.1
+LDPR
+servers
+that
+support
+</ins><a><ins class="diff-new">
+resource
+inlining
+</ins></a><ins class="diff-new">
+MUST
+include
+a
+</ins><code><ins class="diff-new">
+ldp:Page
+</ins></code><ins class="diff-new">
+resource
+in
+the
+representation
+describing
+the
+set
+of
+inlined
+resources,
+whether
+or
+not
+the
+representation
+contains
+subsequent
+pages.
+The
+</ins><code><ins class="diff-new">
+ldp:Page
+</ins></code><ins class="diff-new">
+resource
+conceptually
+contains
+metadata
+about
+the
+representation;
+it
+is
+usually
+not
+part
+of
+the
+HTTP
+resource's
+state,
+and
+its
+presence
+does
+not
+indicate
+that
+the
+LDPR
+server
+supports
+</ins><a href="#ldpr-Paging"><ins class="diff-new">
+paging
+</ins></a><ins class="diff-new">
+in
+general.
+LDPR
+servers
+that
+include
+the
+</ins><code><ins class="diff-new">
+ldp:Page
+</ins></code><ins class="diff-new">
+resource
+for
+inlining
+and
+also
+support
+paging
+MUST
+use
+the
+same
+</ins><code><ins class="diff-new">
+ldp:Page
+</ins></code><ins class="diff-new">
+resource
+for
+the
+triples
+required
+by
+both,
+in
+order
+to
+minimize
+client
+code
+complexity.
+The
+</ins><code><ins class="diff-new">
+ldp:Page
+</ins></code><ins class="diff-new">
+resource's
+triples
+are
+the
+LDP-defined
+means
+by
+which
+the
+servers
+communicate
+to
+LDP
+clients
+the
+set
+of
+HTTP
+resources
+whose
+state
+is
+included
+in
+a
+representation,
+allowing
+clients
+to
+avoid
+HTTP
+</ins><code><ins class="diff-new">
+GET
+</ins></code><ins class="diff-new">
+requests
+for
+them.
+</ins></div><div id="ldpr-4_10_3_2" class="rule"><ins class="diff-new">
+4.10.3.2
+LDPR
+servers
+that
+support
+</ins><a><ins class="diff-new">
+resource
+inlining
+</ins></a><ins class="diff-new">
+MUST
+include
+the
+</ins><code><ins class="diff-new">
+ldp:Page
+</ins></code><ins class="diff-new">
+resource
+described
+in
+</ins><a href="#ldpr-4_10_3_1"><ins class="diff-new">
+section
+4.10.3.1
+</ins></a><ins class="diff-new">
+one
+triple
+for
+each
+inlined
+resource,
+whose
+subject
+is
+the
+</ins><code><ins class="diff-new">
+ldp:Page
+</ins></code><ins class="diff-new">
+resource
+URI,
+whose
+predicate
+is
+</ins><code><ins class="diff-new">
+ldp:inlinedResource
+</ins></code>,<ins class="diff-new">
+and
+whose
+object
+is
+the
+HTTP
+</ins><code><ins class="diff-new">
+Request-URI
+</ins></code><ins class="diff-new">
+of
+an
+inlined
+resource
+[[!HTTP11]].
+</ins></div><div id="ldpc-4_10_3_3" class="rule"><ins class="diff-new">
+4.10.3.3
+LDPR
+clients
+SHOULD
+avoid
+making
+HTTP
+</ins><code><ins class="diff-new">
+GET
+</ins></code><ins class="diff-new">
+requests
+against
+any
+resource
+whose
+HTTP
+</ins><code><ins class="diff-new">
+Request-URI
+</ins></code><ins class="diff-new">
+is
+the
+object
+of
+a
+triple
+of
+the
+form
+described
+in
+</ins><a href="#ldpc-4_10_3_2"><ins class="diff-new">
+section
+4.10.3.2
+</ins></a>,<ins class="diff-new">
+unless
+there
+are
+application-specific
+reasons
+for
+doing
+so.
+Clients
+should
+note
+that
+by
+the
+time
+the
+representation
+is
+received,
+the
+actual
+state
+of
+any
+inlined
+resource(s)
+may
+have
+changed
+due
+to
+subsequent
+requests.
+</ins></div><div id="ldpc-4_10_3_4" class="rule"><ins class="diff-new">
+4.10.3.4
+LDPR
+clients
+MUST
+NOT
+assume
+that
+LDPR
+representations
+lacking
+a
+</ins><code><ins class="diff-new">
+ldp:Page
+</ins></code><ins class="diff-new">
+resource
+or
+lacking
+the
+triple
+described
+in
+</ins><a href="#ldpc-4_10_3_2"><ins class="diff-new">
+section
+4.10.3.2
+</ins></a><ins class="diff-new">
+contain
+all
+the
+triples
+for
+any
+resource(s)
+listed
+in
+the
+representation
+whose
+HTTP
+</ins><code><ins class="diff-new">
+Request-URI
+</ins></code><ins class="diff-new">
+differs
+from
+the
+HTTP
+</ins><code><ins class="diff-new">
+Request-URI
+</ins></code><ins class="diff-new">
+used
+by
+the
+client.
+The
+representation
+might
+in
+fact
+contain
+all
+such
+triples,
+or
+some
+subset
+of
+them,
+and
+that
+might
+or
+might
+not
+be
+completely
+adequate
+for
+the
+client's
+intended
+usage,
+but
+an
+LDP
+client
+has
+no
+way
+to
+discern
+from
+such
+a
+representation
+which
+interpretation
+is
+accurate.
+</ins></div></section></section></section><section><h1 id="ldpc"><ins class="diff-new">
+Linked
+Data
+Platform
+Containers
+</ins></h1><section class="informative"><h2 id="ldpc-informative"><ins class="diff-new">
+Informative
+</ins></h2>
+<p>
+Many
+HTTP
+applications
+and
+sites
+have
+organizing
+concepts
+that
+partition
+the
+overall
+space
+of
+resources
+into
+smaller
+containers.
+Blog
+posts
+are
+grouped
+into
+blogs,
+wiki
+pages
+are
+grouped
+into
+wikis,
+and
+products
+are
+grouped
+into
+catalogs.
+Each
+resource
+created
+in
+the
+application
+or
+site
+is
+created
+within
+an
+instance
+of
+one
+of
+these
+container-like
+entities,
+and
+users
+can
+list
+the
+existing
+artifacts
+within
+one.
+Containers
+answer
+some
+basic
+questions,
+which
+are:
+</p>
+<ol>
+<li>
+To
+which
+URLs
+can
+I
+POST
+to
+create
+new
+resources?
+</li>
+<li>
+Where
+can
+I
+GET
+a
+list
+of
+existing
+resources?
+</li>
+<li>
+How
+is
+the
+order
+of
+the
+container
+entries
+expressed?
+</li>
+<li>
+How
+do
+I
+get
+information
+about
+the
+members
+along
+with
+the
+container?
+</li>
+<li>
+How
+<del class="diff-old">do
+I
+GET
+the
+entries
+of
+a
+large
+container
+broken
+up
+into
+pages?
+How
+</del>
+can
+I
+ensure
+the
+resource
+data
+is
+easy
+to
+query?
+</li>
+</ol>
+<p>
+This
+document
+defines
+the
+representation
+and
+behavior
+of
+containers
+that
+address
+these
+issues.
+The
+set
+of
+members
+of
+a
+container
+is
+defined
+by
+a
+set
+of
+triples
+in
+its
+representation
+(and
+state)
+called
+the
+membership
+triples.
+The
+membership
+triples
+of
+a
+container
+all
+have
+the
+same
+subject
+and
+predicate
+–
+the
+objects
+of
+the
+membership
+triples
+define
+the
+members
+of
+the
+container.
+The
+subject
+of
+the
+membership
+triples
+is
+called
+the
+membership
+subject
+and
+the
+predicate
+is
+called
+the
+membership
+predicate.
+In
+the
+simplest
+cases,
+the
+membership
+subject
+will
+be
+the
+LDPC
+resource
+itself,
+but
+it
+does
+not
+have
+to
+be.
+The
+membership
+predicate
+is
+also
+variable
+and
+will
+often
+be
+a
+predicate
+from
+the
+server
+application
+vocabulary
+or
+the
+<code>
+rdfs:member
+</code>
+predicate.
+</p>
+<p>
+This
+document
+includes
+a
+set
+of
+guidelines
+for
+using
+POST
+to
+create
+new
+resources
+and
+add
+them
+to
+the
+list
+of
+members
+of
+a
+container.
+<del class="diff-old">This
+document
+also
+explains
+how
+</del>
+<ins class="diff-chg">It
+goes
+on
+</ins>
+to
+<del class="diff-old">include
+information
+about
+each
+member
+in
+the
+container’s
+own
+representation
+and
+</del>
+<ins class="diff-chg">explain
+</ins>
+how
+to
+<del class="diff-old">paginate
+the
+container
+representation
+if
+it
+gets
+too
+big.
+The
+model
+for
+containers
+follow
+that
+of
+two
+distinct
+types:
+composition
+and
+aggregation.
+Due
+to
+composition
+constraints,
+the
+lifespan
+of
+the
+member
+resource
+must
+match
+that
+of
+its
+container
+and
+it
+a
+member
+resource
+can
+not
+be
+</del>
+<ins class="diff-chg">learn
+about
+</ins>
+a
+<del class="diff-old">member
+of
+more
+than
+one
+container.
+For
+both
+types
+</del>
+<ins class="diff-chg">set
+</ins>
+of
+<del class="diff-old">containers,
+members
+are
+only
+added
+by
+</del>
+<ins class="diff-chg">related
+resources,
+they
+may
+have
+been
+created
+</ins>
+using
+<del class="diff-old">POST,
+which
+both
+creates
+the
+resource
+and
+inserts
+a
+membership
+triple.
+A
+request
+</del>
+<ins class="diff-chg">POST
+or
+through
+other
+means.
+It
+also
+defines
+behavior
+when
+POST
+created
+resources
+are
+deleted,
+</ins>
+to
+<del class="diff-old">delete
+a
+composite
+</del>
+<ins class="diff-chg">clean
+up
+</ins>
+container
+<del class="diff-old">that
+has
+members,
+will
+result
+in
+all
+the
+members
+</del>
+<ins class="diff-chg">membership,
+</ins>
+and
+<del class="diff-old">the
+container
+itself
+will
+be
+deleted.
+A
+member
+resource
+is
+removed
+from
+a
+composite
+container
+by
+</del>
+deleting
+<del class="diff-old">the
+resource
+directly,
+which
+</del>
+<ins class="diff-chg">containers
+</ins>
+removes
+<del class="diff-old">the
+</del>
+membership
+<del class="diff-old">triple
+from
+the
+container.
+</del>
+<ins class="diff-chg">information
+and
+possibly
+perform
+some
+cleanup
+tasks
+on
+unreferenced
+member
+resoruces.
+</ins>
+</p>
+<p>
+The
+following
+illustrates
+a
+very
+simple
+container
+with
+only
+three
+members
+and
+some
+information
+about
+the
+container
+(the
+fact
+that
+it
+is
+a
+container
+and
+a
+brief
+title):
+</p>
+<del class="diff-old"># The following is the representation of
+</del>
+<pre class="example">
+<ins class="diff-chg"># The following is the representation of
+</ins>
+#    http://example.org/container1/
+@prefix dcterms: &lt;http://purl.org/dc/terms/&gt;.
+@prefix rdfs: &lt;http://www.w3.org/2000/01/rdf-schema#&gt;.
+@prefix ldp: &lt;http://www.w3.org/ns/ldp#&gt;.
+&lt;&gt;
+   a ldp:Container;
+<del class="diff-old">   dcterms:title &quot;A very simple container&quot;;
+rdfs:member
+&lt;member1&gt;,
+&lt;member2&gt;,
+&lt;member3&gt;.
+</del>
+<ins class="diff-chg">   ldp:membershipSubject &lt;&gt;
+   ldp:membershipPredicate rdfs:member;
+   dcterms:title "A very simple container";
+   rdfs:member &lt;member1&gt;, &lt;member2&gt;, &lt;member3&gt;.
+</ins>
+</pre>
+<p>
+This
+example
+is
+very
+straightforward
+-
+the
+membership
+predicate
+is
+<code>
+rdfs:member
+</code>
+and
+the
+membership
+subject
+is
+the
+container
+itself.
+A
+POST
+to
+this
+container
+will
+create
+a
+new
+resource
+and
+add
+it
+to
+the
+list
+of
+members
+by
+adding
+a
+new
+membership
+triple
+to
+the
+container.
+</p>
+<p>
+Sometimes
+it
+is
+useful
+to
+use
+a
+subject
+other
+than
+the
+container
+itself
+as
+the
+membership
+subject
+and
+to
+use
+a
+predicate
+other
+than
+<code>
+rdfs:member
+</code>
+as
+the
+membership
+<del class="diff-old">predicate,
+</del>
+<ins class="diff-chg">predicate.
+Let's
+start
+with
+a
+domain
+resource
+for
+a
+person's
+net
+worth,
+</ins>
+as
+illustrated
+<del class="diff-old">below.
+</del>
+<ins class="diff-chg">below:
+</ins>
+</p>
+<del class="diff-old"># The following is the representation of
+#   http://example.org/netWorth/nw1/assetContainer/
+</del>
+<pre class="example" id="ldpc-ex-membership-full">
+<ins class="diff-chg"># The following is a partial representation of
+#   http://example.org/netWorth/nw1
+@prefix ldp: &lt;http://www.w3.org/ns/ldp#&gt;.
+@prefix o: &lt;http://example.org/ontology/&gt;.
+&lt;&gt;
+   a o:NetWorth;
+   o:netWorthOf &lt;http://example.org/users/JohnZSmith&gt;;
+   o:asset 
+      &lt;assetContainer/a1&gt;,
+      &lt;assetContainer/a2&gt;;
+   o:liability 
+      &lt;liabilityContainer/l1&gt;,
+      &lt;liabilityContainer/l2&gt;,
+      &lt;liabilityContainer/l3&gt;.
+</ins></pre><p><ins class="diff-chg">
+From
+this
+example,
+there
+is
+a
+</ins><code><ins class="diff-chg">
+rdf:type
+</ins></code><ins class="diff-chg">
+of
+</ins><code><ins class="diff-chg">
+o:NetWorth
+</ins></code><ins class="diff-chg">
+indicating
+the
+resource
+represents
+an
+instance
+of
+a
+person's
+net
+worth
+and
+</ins><code><ins class="diff-chg">
+o:netWorthOf
+</ins></code><ins class="diff-chg">
+predicate
+indicating
+the
+associated
+person.
+There
+are
+two
+sets
+of
+same-subject,
+same-predicate
+pairings;
+one
+for
+assets
+and
+one
+for
+liabilities.
+It
+would
+be
+helpful
+to
+be
+able
+to
+associate
+these
+multi-valued
+sets
+using
+a
+URL
+for
+them
+to
+assist
+with
+managing
+these,
+this
+is
+done
+by
+associating
+containers
+with
+them
+as
+illustrated
+below:
+</ins></p><pre class="example" id="ldpc-ex-membership-full"><ins class="diff-chg">
+# The following is an elaborated representation of
+#   http://example.org/netWorth/nw1
+</ins>
+@prefix ldp: &lt;http://www.w3.org/ns/ldp#&gt;.
+@prefix o: &lt;http://example.org/ontology/&gt;.
+&lt;&gt;
+<ins class="diff-new">   a o:NetWorth;
+   o:netWorthOf &lt;http://example.org/users/JohnZSmith&gt;;
+   o:asset 
+      &lt;assetContainer/a1&gt;,
+      &lt;assetContainer/a2&gt;;
+   o:liability 
+      &lt;liabilityContainer/l1&gt;,
+      &lt;liabilityContainer/l2&gt;,
+      &lt;liabilityContainer/l3&gt;.
+&lt;assetContainer/&gt;
+</ins>
+   a ldp:Container;
+<del class="diff-old">   ldp:membershipSubject &lt;http://example.org/netWorth/nw1&gt;;
+</del>
+<ins class="diff-chg">   dcterms:title "The assets of JohnZSmith";
+   ldp:membershipSubject &lt;.&gt;;
+</ins>
+   ldp:membershipPredicate o:asset.
+<del class="diff-old">&lt;http://example.org/netWorth/nw1&gt;
+   a o:NetWorth;
+o:asset
+&lt;a1&gt;,
+&lt;a2&gt;.
+</del>
+<ins class="diff-chg">&lt;liabilityContainer/&gt;
+   a ldp:Container;
+   dcterms:title "The liabilities of JohnZSmith";
+   ldp:membershipSubject &lt;.&gt;;
+   ldp:membershipPredicate o:liability.
+</ins>
+</pre>
+<p>
+The
+essential
+structure
+of
+the
+container
+is
+the
+same,
+but
+in
+this
+example,
+the
+membership
+subject
+is
+not
+the
+container
+itself
+–
+it
+is
+a
+separate
+net
+worth
+resource.
+The
+membership
+<del class="diff-old">predicate
+is
+</del>
+<ins class="diff-chg">predicates
+are
+</ins>
+<code>
+o:asset
+</code>
+<ins class="diff-new">and
+</ins><code><ins class="diff-new">
+o:liability
+</ins></code>
+–
+<del class="diff-old">a
+predicate
+</del>
+<ins class="diff-chg">predicates
+</ins>
+from
+the
+domain
+model.
+A
+POST
+<ins class="diff-new">of
+an
+asset
+representation
+</ins>
+to
+<del class="diff-old">this
+</del>
+<ins class="diff-chg">the
+asset
+</ins>
+container
+will
+create
+a
+new
+asset
+and
+add
+it
+to
+the
+list
+of
+members
+by
+adding
+a
+new
+membership
+triple
+to
+the
+container.
+You
+might
+wonder
+why
+<del class="diff-old">we
+didn’t
+just
+make
+</del>
+<code>
+http://example.org/netWorth/nw1
+</code>
+<ins class="diff-new">isn't
+made
+</ins>
+a
+container
+<ins class="diff-new">itself
+</ins>
+and
+POST
+the
+new
+asset
+directly
+there.
+That
+would
+be
+a
+fine
+design
+if
+<code>
+http://example.org/netWorth/nw1
+</code>
+had
+only
+assets,
+but
+if
+it
+has
+separate
+predicates
+for
+assets
+and
+liabilities,
+that
+design
+will
+not
+work
+because
+it
+is
+unspecified
+to
+which
+predicate
+the
+POST
+should
+add
+a
+membership
+triple.
+Having
+separate
+<code>
+http://example.org/netWorth/nw1/assetContainer/
+</code>
+and
+<code>
+http://example.org/netWorth/nw1/liabilityContainer/
+</code>
+container
+resources
+allows
+both
+assets
+and
+liabilities
+to
+be
+created.
+</p>
+<pre class="example" id="ldpc-ex-membership-subj">
+<ins class="diff-new"># The following is the representation of
+#   http://example.org/netWorth/nw1/assetContainer/
+@prefix ldp: &lt;http://www.w3.org/ns/ldp#&gt;.
+@prefix o: &lt;http://example.org/ontology/&gt;.
+&lt;&gt;
+   a ldp:Container;
+   ldp:membershipSubject &lt;http://example.org/netWorth/nw1&gt;;
+   ldp:membershipPredicate o:asset.
+&lt;http://example.org/netWorth/nw1&gt;
+   a o:NetWorth;
+   o:asset &lt;a1&gt;, &lt;a2&gt;.
+</ins></pre>
+<p>
+In
+this
+example,
+clients
+cannot
+simply
+guess
+which
+resource
+is
+the
+membership
+subject
+and
+which
+predicate
+is
+the
+membership
+predicate,
+so
+the
+example
+includes
+this
+information
+in
+triples
+whose
+subject
+is
+the
+LDPC
+resource
+itself.
+</p>
+<div id="ldpc-member_data" class="rule informative">
+5.1.1
+Container
+Member
+Information
+</div>
+<del class="diff-old">This
+section
+is
+non-normative
+</del>
+<p>
+In
+many
+–
+perhaps
+most
+–
+applications
+involving
+containers,
+it
+is
+desirable
+for
+the
+client
+to
+be
+able
+to
+get
+information
+about
+each
+container
+member
+without
+having
+to
+do
+a
+GET
+on
+each
+one.
+LDPC
+allows
+servers
+to
+include
+this
+information
+directly
+in
+the
+representation
+of
+the
+container.
+The
+server
+decides
+the
+amount
+of
+data
+about
+each
+member
+that
+is
+provided.
+Some
+common
+strategies
+include
+providing
+a
+fixed
+number
+of
+standard
+properties,
+or
+providing
+the
+entire
+RDF
+representation
+of
+each
+member
+resource,
+or
+providing
+nothing.
+The
+server
+application
+domain
+and
+its
+use-cases
+will
+determine
+how
+much
+information
+is
+required.
+</p>
+<p>
+Continuing
+on
+from
+the
+net
+worth
+example,
+there
+will
+be
+additional
+triples
+for
+the
+member
+resources
+(assets)
+in
+the
+representation:
+</p>
+<del class="diff-old"># The following is the representation of
+#	 http://example.org/netWorth/nw1/assetContainer/
+</del>
+<pre class="example">
+<ins class="diff-chg"># The following is the representation of
+#        http://example.org/netWorth/nw1/assetContainer/
+</ins>
+@prefix dcterms: &lt;http://purl.org/dc/terms/&gt;.
+@prefix ldp:      &lt;http://www.w3.org/ns/ldp#&gt;.
+@prefix o:       &lt;http://example.org/ontology/&gt;.
+&lt;&gt;
+   a ldp:Container;
+<del class="diff-old">   dcterms:title &quot;The assets of JohnZSmith&quot;;
+</del>
+<ins class="diff-chg">   dcterms:title "The assets of JohnZSmith";
+</ins>
+   ldp:membershipSubject &lt;http://example.org/netWorth/nw1&gt;;
+   ldp:membershipPredicate o:asset.
+&lt;http://example.org/netWorth/nw1&gt;
+   a o:NetWorth;
+   o:asset &lt;a1&gt;, &lt;a3&gt;, &lt;a2&gt;.
+&lt;a1&gt;
+   a o:Stock;
+   o:value 10000.
+&lt;a2&gt;
+   a o:Bond;
+   o:value 20000.
+&lt;a3&gt;
+   a o:RealEstateHolding;
+<del class="diff-old">o:value
+300000.
+</del>
+<ins class="diff-chg">   o:value 300000.
+</ins>
+</pre>
+<p>
+<ins class="diff-new">In
+a
+similar
+manner,
+when
+the
+representation
+for
+the
+resource
+of
+asset
+</ins><var>.../&lt;a1&gt;</var><ins class="diff-new">
+is
+returned
+a
+server
+may
+include
+the
+membership
+triple
+of
+the
+form
+</ins><var><ins class="diff-new">
+(.../assetContainer/,
+o:asset,
+.../a1).
+</ins></var>
+<del class="diff-old">5.1.2
+Retrieving
+</del>
+</p>
+<div id="ldpc-get_non-member_props" class="rule">
+<ins class="diff-chg">5.1.2&#160;Retrieving
+</ins>
+Only
+Non-member
+Properties
+</div>
+<em>
+This
+section
+is
+non-normative
+</em>
+<p>
+The
+representation
+of
+a
+container
+that
+has
+many
+members
+will
+be
+large.
+There
+are
+several
+important
+cases
+where
+clients
+need
+to
+access
+only
+the
+non-member
+properties
+of
+the
+container.
+Since
+retrieving
+the
+whole
+container
+representation
+to
+get
+this
+information
+may
+be
+onerous
+for
+clients
+and
+cause
+unnecessary
+overhead
+on
+servers,
+it
+is
+desired
+to
+define
+a
+way
+to
+retrieve
+only
+the
+non-member
+property
+values.
+Defining
+for
+each
+LDPC
+a
+corresponding
+resource,
+called
+the
+<del class="diff-old">“non-member
+resource”,
+</del>
+<ins class="diff-chg">“
+</ins><a><ins class="diff-chg">
+non-member
+resource
+</ins></a><ins class="diff-chg">
+”,
+</ins>
+whose
+state
+is
+a
+subset
+of
+the
+state
+of
+the
+container,
+does
+this.
+</p>
+<p>
+The
+example
+listed
+here
+only
+show
+a
+simple
+case
+where
+only
+a
+few
+simple
+non-member
+properties
+are
+retrieved.
+In
+real
+world
+situations
+more
+complex
+cases
+are
+likely,
+such
+as
+those
+that
+add
+other
+predicates
+to
+containers,
+for
+example
+providing
+validation
+information
+and
+associating
+SPARQL
+endpoints.
+<del class="diff-old">[
+SPARQL-QUERY
+]
+</del>
+<ins class="diff-chg">[[SPARQL-QUERY]]
+</ins>
+</p>
+<p>
+Here
+is
+an
+example
+requesting
+the
+non-member
+properties
+of
+a
+container
+identified
+by
+the
+URL
+<code>
+http://example.org/container1/
+<del class="diff-old">and
+adding
+</del>
+</code>.
+<ins class="diff-chg">In
+this
+case,
+</ins>
+the
+<del class="diff-old">query
+string
+</del>
+<ins class="diff-chg">non-member
+resource
+is
+identified
+by
+the
+URL
+</ins>
+<code>
+<del class="diff-old">?non-member-properties
+:
+</del>
+<ins class="diff-chg">http://example.org/container1?non-member-properties
+</ins></code>:
+</p>
+<p>
+Request:
+</p>
+<del class="diff-old">GET /container1?non-member-properties HTTP/1.1
+</del>
+<pre class="example">
+<ins class="diff-chg">GET /container1?non-member-properties HTTP/1.1
+</ins>
+Host: example.org
+<del class="diff-old">Accept:
+text/turtle;
+charset=UTF-8
+</del>
+<ins class="diff-chg">Accept: text/turtle; charset=UTF-8
+</ins>
+</pre>
+<p>
+Response:
+</p>
+<del class="diff-old">HTTP/1.1 200 OK
+</del>
+<pre class="example">
+<ins class="diff-chg">HTTP/1.1 200 OK
+</ins>
+Content-Type: text/turtle; charset=UTF-8
+<del class="diff-old">ETag: &quot;_87e52ce291112&quot;
+</del>
+<ins class="diff-chg">ETag: "_87e52ce291112"
+</ins>
+Content-Length: 325
+@prefix rdfs: &lt;http://www.w3.org/2000/01/rdf-schema#&gt;.
+@prefix dcterms: &lt;http://purl.org/dc/terms/&gt;.
+@prefix ldp: &lt;http://www.w3.org/ns/ldp#&gt;.
+&lt;http://example.org/container1/&gt;
+   a ldp:Container;
+<del class="diff-old">   dcterms:title &quot;A Linked Data Platform Container of Acme Resources&quot;;
+</del>
+<ins class="diff-chg">   dcterms:title "A Linked Data Platform Container of Acme Resources";
+   ldp:membershipSubject http://example.org/container1/;
+</ins>
+   ldp:membershipPredicate rdfs:member;
+<del class="diff-old">dcterms:publisher
+&lt;http://acme.com/&gt;.
+</del>
+<ins class="diff-chg">   dcterms:publisher &lt;http://acme.com/&gt;.
+</ins>
+</pre>
+<del class="diff-old">5.1.3
+Paging
+This
+section
+is
+non-normative
+</del>
+<p>
+<del class="diff-old">It
+sometimes
+happens
+that
+a
+container
+is
+too
+large
+to
+reasonably
+transmit
+its
+representation
+in
+a
+single
+HTTP
+response.
+This
+will
+be
+especially
+true
+if
+the
+container
+representation
+includes
+many
+triples
+from
+the
+representations
+of
+its
+members.
+A
+client
+could
+anticipate
+that
+a
+container
+will
+be
+too
+large
+-
+for
+example,
+a
+client
+tool
+that
+accesses
+defects
+may
+assume
+that
+an
+individual
+defect
+will
+usually
+be
+of
+sufficiently
+constrained
+size
+that
+it
+makes
+sense
+to
+request
+all
+of
+it
+at
+once,
+but
+that
+the
+container
+of
+all
+</del>
+<ins class="diff-chg">While
+</ins>
+the
+<del class="diff-old">defects
+ever
+created
+will
+typically
+be
+too
+big.
+Alternatively,
+a
+server
+</del>
+<ins class="diff-chg">same
+non-member
+resource
+</ins>
+could
+<del class="diff-old">recognize
+that
+a
+container
+that
+has
+been
+requested
+is
+too
+big
+to
+return
+in
+a
+single
+message.
+To
+address
+this
+problem,
+LDPCs
+should
+support
+a
+technique
+called
+Paging.
+Paging
+can
+</del>
+be
+<del class="diff-old">achieved
+with
+a
+simple
+RDF
+pattern.
+For
+each
+container
+resource,
+&lt;containerURL&gt;
+,
+we
+define
+a
+new
+resource
+&lt;containerURL&gt;?firstPage
+.
+The
+triples
+in
+the
+representation
+of
+&lt;containerURL&gt;?firstPage
+are
+a
+subset
+of
+the
+triples
+in
+&lt;containerURL&gt;
+-
+same
+subject,
+predicate
+and
+object.
+LDPC
+servers
+may
+respond
+to
+requests
+for
+a
+container
+by
+redirecting
+the
+client
+</del>
+<ins class="diff-chg">used
+</ins>
+to
+<ins class="diff-new">update
+</ins>
+the
+<del class="diff-old">first
+page
+resource
+–
+</del>
+<ins class="diff-chg">non-member
+properties
+via
+PUT,
+LDP
+recommends
+</ins>
+using
+<del class="diff-old">a
+303
+“See
+Other”
+redirect
+to
+the
+actual
+URL
+for
+the
+page
+resource.
+Continuing
+on
+from
+the
+member
+information
+from
+the
+JohnZSmith
+net
+worth
+example,
+we’ll
+split
+the
+response
+across
+two
+pages.
+The
+client
+requests
+the
+first
+page
+as
+http://example.org/netWorth/nw1/assetContainer/?firstPage
+:
+# The following is the representation of
+#    http://example.org/netWorth/nw1/assetContainer/?firstPage
+@prefix rdf: &lt;http://www.w3.org/1999/02/22-rdf-syntax-ns#&gt;.
+@prefix dcterms: &lt;http://purl.org/dc/terms/&gt;.
+@prefix ldp: &lt;http://www.w3.org/ns/ldp#&gt;.
+@prefix o: &lt;http://example.org/ontology/&gt;.
+&lt;http://example.org/netWorth/nw1/assetContainer/&gt;
+   a ldp:Container;
+   dcterms:title &quot;The assets of JohnZSmith&quot;;
+   ldp:membershipSubject &lt;http://example.org/netWorth/nw1&gt;;
+   ldp:membershipPredicate o:asset.
+&lt;http://example.org/netWorth/nw1/assetContainer/?firstPage&gt;
+   a ldp:Page;
+   ldp:pageOf &lt;http://example.org/netWorth/nw1/assetContainer/&gt;;
+   ldp:nextPage &lt;http://example.org/netWorth/nw1/assetContainer/?p=2&gt;.
+ 
+&lt;http://example.org/netWorth/nw1&gt;
+    a o:NetWorth;
+	o:asset
+	&lt;http://example.org/netWorth/nw1/assetContainer/a1&gt;,
+	&lt;http://example.org/netWorth/nw1/assetContainer/a4&gt;,
+	&lt;http://example.org/netWorth/nw1/assetContainer/a3&gt;,
+	&lt;http://example.org/netWorth/nw1/assetContainer/a2&gt;.
+&lt;http://example.org/netWorth/nw1/assetContainer/a1&gt;
+   a o:Stock;
+   o:value 100.00.
+&lt;http://example.org/netWorth/nw1/assetContainer/a2&gt;
+   a o:Cash;
+   o:value 50.00.
+#
+server
+initially
+supplied
+no
+data
+for
+a3
+and
+a4
+in
+this
+response
+The
+following
+example
+is
+the
+result
+of
+retrieving
+the
+representation
+</del>
+<ins class="diff-chg">PATCH
+</ins>
+for
+<del class="diff-old">the
+next
+page:
+# The following is the representation of
+#  http://example.org/netWorth/nw1/assetContainer/?p=2
+@prefix rdf: &lt;http://www.w3.org/1999/02/22-rdf-syntax-ns#&gt;.
+@prefix dcterms: &lt;http://purl.org/dc/terms/&gt;.
+@prefix ldp: &lt;http://www.w3.org/ns/ldp#&gt;.
+@prefix o: &lt;http://example.org/ontology/&gt;.
+&lt;http://example.org/netWorth/nw1/assetContainer/&gt;
+   a ldp:Container;
+   dcterms:title &quot;The assets of JohnZSmith&quot;;
+   ldp:membershipSubject &lt;http://example.org/netWorth/nw1&gt;;
+   ldp:membershipPredicate o:asset.
+&lt;http://example.org/netWorth/nw1/assetContainer/?p=2&gt;
+   a ldp:Page;
+   ldp:pageOf &lt;http://example.org/netWorth/nw1/assetContainer/&gt;;
+   ldp:nextPage rdf:nil.
+&lt;http://example.org/netWorth/nw1&gt;
+   a o:NetWorth;
+   o:asset 
+      &lt;http://example.org/netWorth/nw1/assetContainer/a5&gt;.
+&lt;http://example.org/netWorth/nw1/assetContainer/a5&gt;
+   a o:Stock;
+   dcterms:title &quot;Big Co.&quot;;
+o:value
+200.02.
+In
+this
+example,
+there
+is
+only
+one
+member
+in
+the
+container
+in
+the
+final
+page.
+To
+indicate
+</del>
+this
+<del class="diff-old">is
+the
+last
+page,
+a
+value
+of
+rdf:nil
+is
+used
+for
+the
+ldp:nextPage
+predicate
+of
+the
+page
+resource.
+LDPC
+guarantees
+that
+any
+and
+all
+the
+triples
+about
+the
+members
+will
+be
+on
+the
+same
+page
+as
+the
+membership
+triple
+for
+the
+member.
+</del>
+<ins class="diff-chg">purpose.
+</ins>
+</p>
+<div id="ldpc-ordering" class="rule">
+5.1.4
+Ordering
+</div>
+<em>
+This
+section
+is
+non-normative
+</em>
+<p>
+There
+are
+many
+cases
+where
+an
+ordering
+of
+the
+members
+of
+the
+container
+is
+important.
+LDPC
+does
+not
+provide
+any
+particular
+support
+for
+server
+ordering
+of
+members
+in
+containers,
+because
+any
+client
+can
+order
+the
+members
+in
+any
+way
+it
+chooses
+based
+on
+the
+value
+of
+any
+available
+property
+of
+the
+members.
+In
+the
+example
+below,
+the
+value
+of
+the
+<code>
+o:value
+</code>
+predicate
+is
+present
+for
+each
+member,
+so
+the
+client
+can
+easily
+order
+the
+members
+according
+to
+the
+value
+of
+that
+property.
+In
+this
+way,
+LDPC
+avoids
+the
+use
+of
+RDF
+constructs
+like
+Seq
+and
+List
+for
+expressing
+order.
+</p>
+<p>
+Order
+<del class="diff-old">only
+</del>
+becomes
+<ins class="diff-new">more
+</ins>
+important
+for
+LDPC
+servers
+when
+containers
+are
+paginated.
+If
+the
+server
+does
+not
+respect
+ordering
+when
+constructing
+pages,
+the
+client
+<del class="diff-old">is
+</del>
+<ins class="diff-chg">would
+be
+</ins>
+forced
+to
+retrieve
+all
+pages
+before
+sorting
+the
+members,
+which
+would
+defeat
+the
+purpose
+of
+pagination.
+In
+cases
+where
+ordering
+is
+important,
+an
+LDPC
+server
+exposes
+all
+the
+members
+on
+a
+page
+with
+<ins class="diff-new">the
+proper
+sort
+order
+with
+relation
+to
+all
+members
+on
+the
+next
+and
+previous
+pages.
+When
+the
+sort
+is
+ascending,
+all
+the
+members
+on
+a
+current
+page
+have
+</ins>
+a
+higher
+sort
+order
+than
+all
+members
+on
+the
+previous
+page
+and
+lower
+sort
+order
+than
+all
+the
+members
+on
+the
+next
+page.
+<del class="diff-old">The
+LDPC
+specification
+provides
+a
+predicate
+-
+ldp:containerSortPredicates
+-
+that
+</del>
+<ins class="diff-chg">When
+</ins>
+the
+<del class="diff-old">server
+</del>
+<ins class="diff-chg">sort
+is
+descending,
+the
+opposite
+order
+is
+used.
+Since
+more
+than
+one
+value
+</ins>
+may
+<del class="diff-old">use
+</del>
+<ins class="diff-chg">be
+used
+</ins>
+to
+<del class="diff-old">communicate
+</del>
+<ins class="diff-chg">sort
+members,
+the
+LDPC
+specification
+allows
+servers
+</ins>
+to
+<ins class="diff-new">assert
+</ins>
+the
+<del class="diff-old">client
+which
+predicates
+were
+used
+for
+page
+ordering.
+Multiple
+predicate
+values
+may
+have
+been
+</del>
+<ins class="diff-chg">ordered
+list
+of
+sort
+criteria
+</ins>
+used
+<del class="diff-old">for
+sorting,
+so
+</del>
+<ins class="diff-chg">to
+sort
+</ins>
+the
+<del class="diff-old">value
+</del>
+<ins class="diff-chg">members,
+using
+the
+</ins><code><ins class="diff-chg">
+ldp:containerSortCriteria
+</ins></code><ins class="diff-chg">
+relation.
+Each
+member
+</ins>
+of
+<del class="diff-old">this
+predicate
+is
+an
+</del>
+<ins class="diff-chg">the
+</ins>
+ordered
+<del class="diff-old">list.
+</del>
+<ins class="diff-chg">list
+exposes
+one
+</ins><code><ins class="diff-chg">
+ldp:containerSortCriterion
+</ins></code>,<ins class="diff-chg">
+consisting
+of
+a
+</ins><code><ins class="diff-chg">
+ldp:containerSortPredicate
+</ins></code>,<code><ins class="diff-chg">
+ldp:containerSortPredicate
+</ins></code>,<ins class="diff-chg">
+and
+optionally
+a
+</ins><code><ins class="diff-chg">
+ldp:containerSortCollation
+</ins></code>.
+</p>
+<p>
+Here
+is
+an
+example
+container
+described
+previously,
+with
+representation
+for
+ordering
+of
+the
+assets:
+</p>
+<del class="diff-old"># The following is the ordered representation of
+</del>
+<pre class="example">
+<ins class="diff-chg"># The following is the ordered representation of
+</ins>
+#   http://example.org/netWorth/nw1/assetContainer/
+@prefix dcterms: &lt;http://purl.org/dc/terms/&gt;.
+@prefix ldp: &lt;http://www.w3.org/ns/ldp#&gt;.
+@prefix o: &lt;http://example.org/ontology/&gt;.
+&lt;&gt;
+   a ldp:Container;
+<del class="diff-old">   dcterms:title &quot;The assets of JohnZSmith&quot;;
+</del>
+<ins class="diff-chg">   dcterms:title "The assets of JohnZSmith";
+</ins>
+   ldp:membershipSubject &lt;http://example.org/netWorth/nw1&gt;;
+   ldp:membershipPredicate o:asset.
+&lt;?firstPage&gt;
+   a ldp:Page;
+   ldp:pageOf &lt;&gt;;
+<del class="diff-old">   ldp:containerSortPredicates (o:value).
+</del>
+<ins class="diff-chg">   ldp:ContainerSortCriteria (#SortValueAscending).
+&lt;#SortValueAscending&gt;
+   a ldp:ContainerSortCriterion;
+   ldp:containerSortOrder ldp:ascendingOrder;
+   ldp:containerSortPredicate o:value.
+</ins>
+&lt;http://example.org/netWorth/nw1&gt;
+   a o:NetWorth;
+   o:asset &lt;a1&gt;, &lt;a3&gt;, &lt;a2&gt;.
+&lt;a1&gt;
+   a o:Stock;
+   o:value 100.00.
+&lt;a2&gt;
+   a o:Cash;
+   o:value 50.00.
+&lt;a3&gt;
+   a o:RealEstateHolding;
+<del class="diff-old">o:value
+300000.
+</del>
+<ins class="diff-chg">   o:value 300000.
+</ins>
+</pre>
+<p>
+As
+you
+can
+see
+by
+the
+addition
+of
+the
+<code>
+<del class="diff-old">ldp:containerSortPredicates
+</del>
+<ins class="diff-chg">ldp:ContainerSortCriteria
+</ins>
+</code>
+predicate,
+the
+<code>
+o:value
+</code>
+predicate
+is
+used
+to
+<del class="diff-old">define
+the
+ordering
+of
+</del>
+<ins class="diff-chg">order
+</ins>
+the
+<del class="diff-old">results.
+It
+</del>
+<ins class="diff-chg">page
+members
+in
+ascending
+order.
+&#160;It
+</ins>
+is
+up
+to
+the
+domain
+model
+and
+server
+to
+determine
+the
+appropriate
+predicate
+to
+indicate
+the
+resource’s
+order
+within
+a
+page,
+and
+up
+to
+the
+client
+receiving
+this
+representation
+to
+use
+that
+order
+in
+whatever
+way
+is
+appropriate,
+for
+example
+to
+sort
+the
+data
+prior
+to
+presentation
+on
+a
+user
+interface.
+</p>
+<del class="diff-old">5.2
+</del>
+</section>
+<section>
+<h2 id="ldpc-general">
+General
+</h2>
+<p>
+The
+Linked
+Data
+Platform
+does
+not
+define
+how
+clients
+discover
+<dfn>
+<abbr title="Linked Data Platform Containers">
+LDPCs
+</abbr>
+</dfn>.
+</p>
+<div id="ldpc-5_2_1" class="rule">
+5.2.1
+LDPC
+servers
+MUST
+also
+be
+conformant
+LDPR
+servers.
+A
+Linked
+Data
+Platform
+Container
+MUST
+also
+be
+a
+conformant
+Linked
+Data
+Platform
+Resource.
+</div>
+<div id="ldpc-5_2_2" class="rule">
+5.2.2
+<del class="diff-old">The
+</del>
+<ins class="diff-chg">For
+an
+LDPC,
+the
+</ins>
+same
+<del class="diff-old">resource,
+</del>
+<ins class="diff-chg">resource
+(LDPR
+or
+not)
+which
+is
+</ins>
+identified
+by
+its
+canonical
+URI,
+<del class="diff-old">MUST
+be
+a
+member
+of
+only
+a
+single
+LDPC
+.
+The
+same
+resource
+can
+not
+</del>
+<ins class="diff-chg">MAY
+</ins>
+be
+a
+member
+of
+<del class="diff-old">mutliple
+LDPCs
+.
+</del>
+<ins class="diff-chg">more
+than
+one
+LDPC.
+</ins>
+</div>
+<div id="ldpc-5_2_3" class="rule">
+5.2.3
+The
+state
+of
+an
+LDPC
+includes
+information
+about
+which
+resources
+are
+its
+members.
+In
+the
+simplest
+cases,
+the
+membership
+subject
+will
+be
+the
+LDPC
+resource
+itself,
+but
+it
+does
+not
+have
+to
+be.
+The
+membership
+predicate
+is
+also
+variable
+and
+will
+often
+be
+a
+predicate
+from
+the
+server
+application
+vocabulary.
+If
+there
+is
+no
+obvious
+predicate
+from
+the
+server
+application
+vocabulary
+to
+use,
+LDPC
+servers
+SHOULD
+use
+the
+<code>
+rdfs:member
+</code>
+predicate.
+<del class="diff-old">ISSUE-21
+container
+affordances
+</del>
+<ins class="diff-chg">Member
+resources
+can
+be
+any
+kind
+of
+resource
+identified
+by
+its
+URI,
+LDPR
+or
+otherwise.
+</ins>
+</div>
+<div id="ldpc-5_2_4" class="rule">
+5.2.4
+An
+LDPC
+MUST
+contain
+one
+triple
+<del class="diff-old">containing
+the
+ldp:membershipSubject
+predicate
+when
+the
+membership
+</del>
+<ins class="diff-chg">whose
+</ins>
+subject
+is
+<del class="diff-old">not
+</del>
+the
+LDPC
+<del class="diff-old">itself.
+This
+triple's
+</del>
+<ins class="diff-chg">URI,
+whose
+predicate
+is
+the
+</ins><code><ins class="diff-chg">
+ldp:membershipSubject
+</ins></code>,<ins class="diff-chg">
+and
+whose
+</ins>
+object
+<del class="diff-old">provides
+clients
+with
+</del>
+<ins class="diff-chg">is
+</ins>
+the
+<del class="diff-old">LDPC
+'s
+</del>
+<ins class="diff-chg">LDPC's
+</ins>
+membership
+subject
+URI.
+</div>
+<div id="ldpc-5_2_5" class="rule">
+5.2.5
+An
+LDPC
+MUST
+contain
+one
+triple
+<del class="diff-old">containing
+</del>
+<ins class="diff-chg">whose
+subject
+is
+</ins>
+the
+<ins class="diff-new">LDPC
+URI,
+and
+whose
+predicate
+is
+either
+</ins>
+<code>
+ldp:membershipPredicate
+</code>
+<ins class="diff-new">or
+</ins><code><ins class="diff-new">
+ldp:membershipPredicateInverse
+</ins></code>.<ins class="diff-new">
+The
+object
+of
+the
+triple
+is
+constrained
+by
+other
+sections,
+such
+as
+</ins><a href="ldpc-5_2_5_1"><ins class="diff-new">
+5.2.5.1
+</ins></a><ins class="diff-new">
+or
+</ins><a href="ldpc-5_2_5_2"><ins class="diff-new">
+5.2.5.2
+</ins></a>.</div><div class="ldp-issue-pending"><div class="ldp-issue-title"><a href="http://www.w3.org/2012/ldp/track/issues/75"><ins class="diff-new">
+ISSUE-75
+</ins></a></div><ins class="diff-new">
+non-monotonic
+ldp:membershipXXX
+relations.
+Drafted
+per
+2013-06-18
+F2F
+resolution.
+</ins></div><div id="ldpc-5_2_5_1" class="rule"><ins class="diff-new">
+5.2.5.1
+For
+a
+given
+triple
+</ins><var><ins class="diff-new">
+T
+</ins></var><ins class="diff-new">
+with
+a
+subject
+</ins><var><ins class="diff-new">
+C
+</ins></var><ins class="diff-new">
+of
+the
+LDPC
+and
+</ins>
+predicate
+<del class="diff-old">when
+</del>
+<ins class="diff-chg">of
+</ins><code><ins class="diff-chg">
+ldp:membershipPredicate
+</ins></code>,
+the
+<del class="diff-old">container
+</del>
+<ins class="diff-chg">object
+MUST
+be
+the
+URI
+of
+the
+membership
+</ins>
+predicate
+<del class="diff-old">is
+not
+</del>
+<var>
+<ins class="diff-chg">P
+</ins></var><ins class="diff-chg">
+used
+to
+indicate
+membership
+to
+the
+linked
+to
+LDPC,
+or
+simply:
+</ins><var><ins class="diff-chg">
+T
+=
+(
+C
+</ins></var>,
+<code>
+<del class="diff-old">rdfs:member
+.
+This
+triple's
+</del>
+<ins class="diff-chg">ldp:membershipPredicate
+</ins></code>,<var><ins class="diff-chg">
+P)
+</ins></var>.<ins class="diff-chg">
+For
+the
+membership
+predicate
+URI
+</ins>
+object
+<del class="diff-old">provides
+clients
+</del>
+<ins class="diff-chg">used
+in
+the
+triple
+</ins><var><ins class="diff-chg">
+T
+</ins></var>,<ins class="diff-chg">
+it
+would
+be
+found
+in
+a
+resource's
+same
+subject
+</ins><var><ins class="diff-chg">
+R
+</ins></var><ins class="diff-chg">
+and
+same
+predicate
+</ins><var><ins class="diff-chg">
+P
+</ins></var><ins class="diff-chg">
+membership
+triples
+of
+the
+form:
+(
+</ins><var><ins class="diff-chg">
+R
+</ins></var>,<var><ins class="diff-chg">
+P
+</ins></var>,<var><ins class="diff-chg">
+MR
+</ins></var><ins class="diff-chg">
+),
+where
+</ins><var><ins class="diff-chg">
+MR
+</ins></var><ins class="diff-chg">
+represents
+URI
+of
+a
+member
+resource.
+</ins></div><div id="ldpc-5_2_5_2" class="rule"><ins class="diff-chg">
+5.2.5.2
+For
+a
+given
+triple
+</ins><var><ins class="diff-chg">
+T
+</ins></var>
+with
+<ins class="diff-new">a
+subject
+</ins><var><ins class="diff-new">
+C
+</ins></var><ins class="diff-new">
+of
+</ins>
+the
+LDPC
+<del class="diff-old">'s
+</del>
+<ins class="diff-chg">and
+predicate
+of
+</ins><code><ins class="diff-chg">
+ldp:membershipPredicateInverse
+</ins></code>,<ins class="diff-chg">
+the
+object
+MUST
+be
+the
+URI
+of
+the
+</ins>
+membership
+predicate
+<del class="diff-old">URI.
+</del>
+<var>
+<ins class="diff-chg">P
+</ins></var><ins class="diff-chg">
+used
+to
+indicate
+membership
+to
+the
+linked
+to
+LDPC,
+or
+simply:
+</ins><var><ins class="diff-chg">
+T
+=
+(
+C
+</ins></var>,<code><ins class="diff-chg">
+ldp:membershipPredicateInverse
+</ins></code>,<var><ins class="diff-chg">
+P)
+</ins></var>.<ins class="diff-chg">
+For
+the
+membership
+predicate
+URI
+object
+used
+in
+the
+triple
+</ins><var><ins class="diff-chg">
+T
+</ins></var>,<ins class="diff-chg">
+it
+would
+be
+found
+in
+a
+resource's
+object
+subject
+</ins><var><ins class="diff-chg">
+R
+</ins></var><ins class="diff-chg">
+and
+same
+predicate
+</ins><var><ins class="diff-chg">
+P
+</ins></var><ins class="diff-chg">
+membership
+triples
+of
+the
+form:
+(
+</ins><var><ins class="diff-chg">
+MR
+</ins></var>,<var><ins class="diff-chg">
+P
+</ins></var>,<var><ins class="diff-chg">
+R
+</ins></var><ins class="diff-chg">
+),
+where
+</ins><var><ins class="diff-chg">
+MR
+</ins></var><ins class="diff-chg">
+represents
+URI
+of
+a
+member
+resource.
+</ins>
+</div>
+<div id="ldpc-5_2_6" class="rule">
+5.2.6
+The
+representation
+of
+a
+LDPC
+MAY
+include
+an
+arbitrary
+number
+of
+additional
+triples
+whose
+subjects
+are
+the
+members
+of
+the
+container,
+or
+that
+are
+from
+the
+representations
+of
+the
+members
+(if
+they
+have
+RDF
+representations).
+This
+allows
+a
+LDPC
+server
+to
+provide
+clients
+with
+information
+about
+the
+members
+without
+the
+client
+having
+to
+do
+a
+<code>
+GET
+</code>
+on
+each
+member
+individually.
+See
+section
+<a href="#ldpc-member_data">
+5.1.1
+Container
+Member
+Information
+</a>
+for
+additional
+details.
+<del class="diff-old">ISSUE-13
+</del>
+</div>
+<del class="diff-old">Include
+clarifications
+about
+LDPC
+representations
+that
+include
+member
+triples
+</del>
+<div id="ldpc-5_2_7" class="rule">
+5.2.7
+The
+representation
+of
+a
+LDPC
+MUST
+have
+<code>
+rdf:type
+</code>
+of
+<code>
+ldp:Container
+</code>,
+but
+it
+MAY
+have
+additional
+<code>
+rdf:type
+</code>
+s.
+</div>
+<div id="ldpc-5_2_8" class="rule">
+5.2.8
+LDPCs
+SHOULD
+NOT
+use
+RDF
+container
+types
+<code>
+rdf:Bag
+</code>,
+<code>
+rdf:Seq
+</code>
+or
+<code>
+rdf:List
+</code>.
+</div>
+<div id="ldpc-5_2_9" class="rule">
+<ins class="diff-chg">5.2.9
+LDPC
+servers
+SHOULD
+NOT
+re-use
+URIs,
+regardless
+of
+the
+mechanism
+by
+which
+members
+are
+created
+(
+</ins><code><ins class="diff-chg">
+POST
+</ins></code>,<code><ins class="diff-chg">
+PUT
+</ins></code>,<ins class="diff-chg">
+etc.).
+Certain
+specific
+cases
+exist
+where
+a
+LDPC
+server
+MAY
+delete
+a
+resource
+and
+then
+later
+re-use
+the
+URI
+when
+it
+identifies
+the
+same
+resource,
+but
+only
+when
+consistent
+with
+Web
+architecture
+[[WEBARCH]].
+While
+it
+is
+difficult
+to
+provide
+absolute
+implementation
+guarantees
+of
+non-reuse
+in
+all
+failure
+scenarios,
+re-using
+URIs
+creates
+ambiguities
+for
+clients
+that
+are
+best
+avoided.
+</ins></div><div id="ldpc-5_2_10" class="rule"><ins class="diff-chg">
+5.2.10
+Some
+LDPC's
+have
+membership
+object's
+that
+are
+not
+directly
+URIs
+minted
+upon
+LDPC
+member
+creation,
+for
+example
+URIs
+with
+non-empty
+fragment
+identifier
+[[RFC3986]].
+To
+determine
+which
+object
+URI
+to
+use
+for
+the
+membership
+triple,
+LDPC's
+MUST
+contain
+triple
+whose
+subject
+is
+the
+LDPC
+URI,
+predicate
+is
+</ins><code><ins class="diff-chg">
+ldp:membershipObject
+</ins></code>,<ins class="diff-chg">
+with
+an
+object
+</ins><var><ins class="diff-chg">
+MO
+</ins></var>.<ins class="diff-chg">
+Where
+</ins><var><ins class="diff-chg">
+MO
+</ins></var><ins class="diff-chg">
+and
+the
+HTTP
+URI
+</ins><var><ins class="diff-chg">
+R
+</ins></var><ins class="diff-chg">
+from
+</ins><code><ins class="diff-chg">
+POST
+</ins></code><ins class="diff-chg">
+create
+(as
+found
+in
+HTTP
+response
+</ins><code><ins class="diff-chg">
+Location
+</ins></code><ins class="diff-chg">
+header)
+can
+be
+used
+to
+locate
+a
+triple
+of
+the
+form:
+</ins><var><ins class="diff-chg">
+(R,
+MO,
+N)
+</ins></var><ins class="diff-chg">
+and
+where
+</ins><var><ins class="diff-chg">
+N
+</ins></var><ins class="diff-chg">
+can
+be
+used
+to
+construct
+the
+membership
+triple
+of
+the
+form:
+</ins><var><ins class="diff-chg">
+(membership
+subject,
+membership
+predicate,
+N)
+</ins></var>.<ins class="diff-chg">
+When
+</ins><code><ins class="diff-chg">
+ldp:membershipPredicateInverse
+</ins></code><ins class="diff-chg">
+is
+used
+instead
+of
+</ins><code><ins class="diff-chg">
+ldp:membershipPredicate
+</ins></code>,<ins class="diff-chg">
+the
+membership
+triple
+MUST
+be
+of
+the
+form:
+</ins><var><ins class="diff-chg">
+(N,
+membership
+predicate,
+membership
+subject)
+</ins></var>.<ins class="diff-chg">
+To
+indicate
+that
+the
+member
+resource
+URI
+is
+the
+membership
+object
+(the
+default
+or
+typical
+case),
+the
+object
+MUST
+be
+set
+to
+predefined
+URI
+</ins><code><ins class="diff-chg">
+ldp:MemberSubject
+</ins></code><ins class="diff-chg">
+such
+that
+it
+forms
+the
+triple:
+</ins><var><ins class="diff-chg">
+(LDPC
+URI,
+</ins><code><ins class="diff-chg">
+ldp:membershipObject
+</ins></code>,<code><ins class="diff-chg">
+ldp:MemberSubject
+</ins></code><ins class="diff-chg">
+)
+</ins></var>.</div><div class="ldp-issue-pending">
+<div class="ldp-issue-title">
+<del class="diff-old">ISSUE-38
+</del>
+<a href="http://www.w3.org/2012/ldp/track/issues/72">
+<ins class="diff-chg">ISSUE-72
+</ins>
+</a>
+</div>
+<del class="diff-old">filtered
+representations
+and
+inlining
+</del>
+<ins class="diff-chg">edited
+in
+ldp:membershipObject
+in
+new
+previous
+section
+</ins>
+</div>
+<del class="diff-old">5.3
+</del>
+</section>
+<section>
+<h2 id="ldpc-HTTP_GET">
+HTTP
+GET
+</h2>
+<div id="ldpc-5_3_1" class="rule">
+5.3.1
+The
+representation
+of
+a
+LDPC
+MUST
+contain
+a
+set
+of
+triples
+with
+a
+consistent
+subject
+and
+predicate
+whose
+objects
+indicate
+members
+of
+the
+container.
+The
+subject
+of
+the
+triples
+MAY
+be
+the
+container
+itself
+or
+MAY
+be
+another
+resource
+(as
+in
+the
+<a href="#ldpc-ex-membership-subj">
+example
+</a>
+).
+<del class="diff-old">See
+</del>
+<ins class="diff-chg">&#160;See
+</ins>
+also
+<a href="#ldpc-5_2_3">
+5.2.3
+</a>.
+</div>
+<div id="ldpc-5_3_2" class="rule">
+5.3.2
+LDPC
+servers
+<del class="diff-old">SHOULD
+support
+requests
+for
+information
+about
+a
+known
+LDPC
+without
+retrieving
+a
+full
+representation
+including
+all
+of
+its
+members,
+by
+the
+existence
+of
+the
+token
+&quot;
+non-member-properties
+&quot;
+on
+</del>
+<ins class="diff-chg">MAY
+represent
+</ins>
+the
+<del class="diff-old">query
+component
+</del>
+<ins class="diff-chg">members
+</ins>
+of
+<del class="diff-old">the
+LDPC
+URL.
+For
+example,
+if
+there
+is
+</del>
+a
+<ins class="diff-chg">paged
+</ins>
+LDPC
+<del class="diff-old">URL
+&lt;containerURL&gt;,
+the
+URL
+to
+request
+</del>
+<ins class="diff-chg">in
+a
+sequential
+order.
+&#160;If
+</ins>
+the
+<del class="diff-old">non-membership
+properties
+would
+be
+&lt;containerURL&gt;?non-member-properties
+.
+See
+section
+5.1.2
+Retrieving
+Only
+Non-member
+Properties
+for
+examples.
+An
+LDPC
+</del>
+server
+<del class="diff-old">that
+</del>
+does
+<del class="diff-old">not
+support
+a
+request
+to
+retrieve
+non-member
+resource
+properties
+via
+a
+Request-URI
+of
+“
+&lt;containerURL&gt;?non-member-properties
+”,
+MUST
+return
+a
+HTTP
+status
+code
+404
+(Not
+Found).
+An
+LDPC
+server
+that
+supports
+a
+request
+to
+retrieve
+non-member
+resource
+properties
+via
+a
+different
+Request-URI
+than
+“
+&lt;containerURL&gt;?non-member-properties
+”,
+</del>
+<ins class="diff-chg">so,
+it
+</ins>
+MUST
+<del class="diff-old">return
+a
+HTTP
+Redirection
+3xx
+status
+code
+such
+as
+301
+(Moved
+Permanently)
+or
+302
+(Found).
+5.3.3
+An
+LDPC
+server
+that
+does
+not
+support
+</del>
+<ins class="diff-chg">be
+specify
+the
+order
+using
+</ins>
+a
+<del class="diff-old">request
+to
+retrieve
+</del>
+<ins class="diff-chg">triple
+whose
+subject
+is
+</ins>
+the
+<del class="diff-old">first
+</del>
+page
+<del class="diff-old">resource
+representation
+from
+a
+known
+LDPC
+</del>
+<ins class="diff-chg">URI,
+</ins>
+whose
+<del class="diff-old">URL
+</del>
+<ins class="diff-chg">predicate
+</ins>
+is
+<del class="diff-old">“
+</del>
+<code>
+<del class="diff-old">&lt;containerURL&gt;
+”
+by
+using
+the
+Request-URI
+“
+</del>
+<ins class="diff-chg">ldp:containerSortCriteria
+</ins></code>,<ins class="diff-chg">
+and
+whose
+object
+is
+a
+</ins>
+<code>
+<del class="diff-old">&lt;containerURL&gt;?firstPage
+</del>
+<ins class="diff-chg">rdf:List
+</ins>
+</code>
+<del class="diff-old">”,
+MUST
+return
+a
+HTTP
+status
+code
+404
+(Not
+Found).
+An
+LDPC
+server
+that
+supports
+that
+request
+using
+a
+different
+Request-URI
+than
+“
+</del>
+<ins class="diff-chg">of
+</ins>
+<code>
+<del class="diff-old">&lt;containerURL&gt;?firstPage
+</del>
+<ins class="diff-chg">ldp:containerSortCriterion
+</ins>
+</code>
+<del class="diff-old">”,
+</del>
+<ins class="diff-chg">resources.
+The
+resulting
+order
+</ins>
+MUST
+<del class="diff-old">return
+a
+HTTP
+Redirection
+3xx
+status
+code
+such
+</del>
+<ins class="diff-chg">be
+</ins>
+as
+<del class="diff-old">301
+(Moved
+Permanently)
+or
+302
+(Found).
+5.3.4
+LDPC
+servers
+SHOULD
+support
+requests
+for
+splitting
+large
+LDPCs
+into
+pages
+indicated
+</del>
+<ins class="diff-chg">defined
+</ins>
+by
+<del class="diff-old">a
+client
+supplying
+the
+token
+“
+</del>
+<ins class="diff-chg">SPARQL
+</ins>
+<code>
+<del class="diff-old">firstPage
+</del>
+<ins class="diff-chg">SELECT
+</ins>
+</code>
+<del class="diff-old">”
+on
+</del>
+<ins class="diff-chg">’s
+</ins><code><ins class="diff-chg">
+ORDER
+BY
+</ins></code><ins class="diff-chg">
+clause
+[[!SPARQL-QUERY]].
+Sorting
+criteria
+MUST&#160;be
+</ins>
+the
+<del class="diff-old">query
+component
+</del>
+<ins class="diff-chg">same
+for
+all
+pages
+</ins>
+of
+<del class="diff-old">the
+LDPC
+URL.
+For
+example,
+if
+there
+is
+</del>
+a
+<del class="diff-old">LDPC
+URL
+&lt;containerURL&gt;
+,
+</del>
+<ins class="diff-chg">representation;
+if
+</ins>
+the
+<del class="diff-old">URL
+</del>
+<ins class="diff-chg">criteria
+were
+allowed
+</ins>
+to
+<del class="diff-old">request
+</del>
+<ins class="diff-chg">vary,
+</ins>
+the
+<del class="diff-old">first
+page
+</del>
+<ins class="diff-chg">ordering
+among
+members
+of
+a
+container
+across
+pages
+</ins>
+would
+be
+<del class="diff-old">&lt;containerURL&gt;?firstPage
+.
+</del>
+<ins class="diff-chg">undefined.
+</ins>
+The
+<del class="diff-old">representation
+for
+any
+page,
+including
+the
+first,
+will
+include
+the
+URL
+for
+the
+next
+page.
+See
+section
+5.1.3
+Paging
+for
+additional
+details.
+5.3.5
+LDPC
+servers
+MAY
+split
+</del>
+<ins class="diff-chg">first
+list
+entry
+provides
+</ins>
+the
+<del class="diff-old">response
+representation
+of
+</del>
+<ins class="diff-chg">primary
+sorting
+criterion,
+any
+second
+entry
+provides
+</ins>
+a
+<del class="diff-old">LDPC
+regardless
+of
+what
+</del>
+<ins class="diff-chg">secondary
+criterion
+used
+to
+order
+members
+considered
+equal
+according
+to
+</ins>
+the
+<del class="diff-old">client
+requested
+(such
+as
+when
+a
+client
+omits
+a
+“
+firstPage
+”
+query
+component
+of
+a
+request
+URL).
+This
+is
+also
+known
+as
+server-initiated
+paging.
+</del>
+<ins class="diff-chg">primary
+criterion,
+and
+so
+on.
+</ins>
+See
+section
+<del class="diff-old">5.1.3
+Paging
+</del>
+<a href="#ldpc-ordering">
+<ins class="diff-chg">5.1.4
+Ordering
+</ins>
+</a>
+for
+<del class="diff-old">additional
+details.
+</del>
+<ins class="diff-chg">an
+example.
+</ins>
+</div>
+<del class="diff-old">5.3.5.1
+LDPC
+servers
+that
+initiate
+paging
+SHOULD
+respond
+to
+requests
+for
+a
+</del>
+<div id="ldpc-5_3_3" class="rule">
+<ins class="diff-chg">5.3.3
+</ins>
+LDPC
+<del class="diff-old">by
+redirecting
+the
+client
+to
+the
+</del>
+page
+<del class="diff-old">resource
+–
+</del>
+<ins class="diff-chg">representations
+ordered
+</ins>
+using
+<del class="diff-old">a
+303
+“See
+Other”
+redirect
+to
+the
+actual
+URL
+for
+the
+page
+resource.
+5.3.6
+LDPC
+servers
+that
+support
+paging
+</del>
+<code>
+<ins class="diff-chg">ldp:containerSortCriteria
+</ins></code>
+MUST
+<del class="diff-old">include
+</del>
+<ins class="diff-chg">contain,
+</ins>
+in
+<del class="diff-old">the
+page
+representation
+</del>
+<ins class="diff-chg">every
+</ins><code><ins class="diff-chg">
+ldp:containerSortCriterion
+</ins></code><ins class="diff-chg">
+list
+entry,
+</ins>
+a
+<del class="diff-old">representation
+for
+the
+LDPC
+,
+such
+that:
+5.3.6.1
+The
+page
+resource
+representation
+SHOULD
+have
+one
+</del>
+triple
+<del class="diff-old">to
+indicate
+its
+type,
+</del>
+whose
+subject
+is
+the
+<del class="diff-old">URL
+of
+the
+page,
+</del>
+<ins class="diff-chg">sort
+criterion
+identifier,
+</ins>
+whose
+predicate
+is
+<code>
+<del class="diff-old">rdf:type
+</del>
+<ins class="diff-chg">ldp:containerSortPredicate
+</ins>
+</code>
+and
+<ins class="diff-new">whose
+</ins>
+object
+is
+<del class="diff-old">ldp:Page
+.
+It
+also
+SHOULD
+have
+1
+triple
+to
+indicate
+</del>
+the
+<del class="diff-old">container
+it
+is
+paging,
+</del>
+<ins class="diff-chg">predicate
+</ins>
+whose
+<del class="diff-old">subject
+</del>
+<ins class="diff-chg">value
+</ins>
+is
+<del class="diff-old">the
+URL
+of
+the
+page,
+</del>
+<ins class="diff-chg">used
+to
+order
+members
+between
+pages
+(the
+</ins><dfn><ins class="diff-chg">
+page-ordering
+values
+</ins></dfn><ins class="diff-chg">
+).
+The
+only
+</ins>
+predicate
+<del class="diff-old">is
+</del>
+<ins class="diff-chg">data
+types
+whose
+behavior
+LDP
+constrains
+are
+those
+defined
+by
+SPARQL
+</ins>
+<code>
+<del class="diff-old">ldp:pageOf
+,
+</del>
+<ins class="diff-chg">SELECT
+</ins></code><ins class="diff-chg">
+’s
+</ins><code><ins class="diff-chg">
+ORDER
+BY
+</ins></code><ins class="diff-chg">
+clause
+[[!SPARQL-QUERY]].
+Other
+data
+types
+can
+be
+used,
+but
+LDP
+assigns
+no
+meaning
+to
+them
+</ins>
+and
+<del class="diff-old">object
+is
+the
+URL
+of
+the
+LDPC
+.
+</del>
+<ins class="diff-chg">interoperability
+will
+be
+limited.
+</ins>
+</div>
+<del class="diff-old">5.3.6.2
+The
+</del>
+<div id="ldpc-5_3_4" class="rule">
+<ins class="diff-chg">5.3.4
+LDPC
+</ins>
+page
+<del class="diff-old">resource
+representation
+</del>
+<ins class="diff-chg">representations
+ordered
+using
+</ins><code><ins class="diff-chg">
+ldp:containerSortCriteria
+</ins></code>
+MUST
+<del class="diff-old">have
+one
+</del>
+<ins class="diff-chg">contain,
+in
+every
+</ins><code><ins class="diff-chg">
+ldp:containerSortCriterion
+</ins></code><ins class="diff-chg">
+list
+entry,
+a
+</ins>
+triple
+<del class="diff-old">with
+the
+</del>
+<ins class="diff-chg">whose
+</ins>
+subject
+<del class="diff-old">of
+</del>
+<ins class="diff-chg">is
+</ins>
+the
+<del class="diff-old">page,
+</del>
+<ins class="diff-chg">sort
+criterion
+identifier,
+whose
+</ins>
+predicate
+<del class="diff-old">of
+</del>
+<ins class="diff-chg">is
+</ins>
+<code>
+<del class="diff-old">ldp:nextPage
+</del>
+<ins class="diff-chg">ldp:containerSortOrder
+</ins>
+</code>
+and
+<ins class="diff-new">whose
+</ins>
+object
+<del class="diff-old">being
+the
+URL
+for
+the
+subsequent
+page.
+5.3.6.3
+The
+last
+page
+resource
+representation
+MUST
+have
+one
+triple
+with
+the
+subject
+of
+</del>
+<ins class="diff-chg">describes
+</ins>
+the
+<del class="diff-old">last
+page,
+predicate
+of
+</del>
+<ins class="diff-chg">order
+used.
+LDP
+defines
+two
+values,
+</ins>
+<code>
+<del class="diff-old">ldp:nextPage
+</del>
+<ins class="diff-chg">ldp:ascending
+</ins>
+</code>
+and
+<del class="diff-old">object
+being
+</del>
+<code>
+<del class="diff-old">rdf:nil
+.
+</del>
+<ins class="diff-chg">ldp:descending
+</ins></code>,<ins class="diff-chg">
+for
+use
+as
+the
+object
+of
+this
+triple.
+Other
+values
+can
+be
+used,
+but
+LDP
+assigns
+no
+meaning
+to
+them
+and
+interoperability
+will
+be
+limited.
+</ins>
+</div>
+<div class="ldp-issue-pending">
+<div class="ldp-issue-title">
+<del class="diff-old">ISSUE-18
+</del>
+<a href="http://www.w3.org/2012/ldp/track/issues/14">
+<ins class="diff-chg">ISSUE-14
+</ins>
+</a>
+</div>
+<del class="diff-old">container
+membership
+and
+robust
+pagination
+</del>
+<ins class="diff-chg">Include
+clarifications
+about
+ordering
+in
+LDPC
+representations.
+The
+ReSpec
+SPARQL
+QUERY
+link
+is
+http://www.w3.org/TR/rdf-sparql-query/
+,
+which
+has
+highlighted
+text
+referring
+readers
+to
+SPARQL
+1.1.
+Which
+normative
+reference
+do
+we
+want?
+</ins>
+</div>
+<del class="diff-old">5.3.7
+</del>
+<div id="ldpc-5_3_5" class="rule">
+<ins class="diff-chg">5.3.5
+</ins>
+LDPC
+<del class="diff-old">servers
+</del>
+<ins class="diff-chg">page
+representations
+ordered
+using
+</ins><code><ins class="diff-chg">
+ldp:containerSortCriteria
+</ins></code>
+MAY
+<del class="diff-old">represent
+the
+members
+of
+a
+paged
+LDPC
+</del>
+<ins class="diff-chg">contain,
+</ins>
+in
+<del class="diff-old">a
+sequential
+order.
+The
+order
+MUST
+be
+specified
+using
+the
+</del>
+<ins class="diff-chg">any
+</ins>
+<code>
+<del class="diff-old">ldp:containerSortPredicates
+</del>
+<ins class="diff-chg">ldp:containerSortCriterion
+</ins>
+</code>
+<del class="diff-old">predicate
+</del>
+<ins class="diff-chg">list
+entry,
+a
+triple
+</ins>
+whose
+subject
+is
+<del class="diff-old">that
+of
+</del>
+the
+<del class="diff-old">page
+</del>
+<ins class="diff-chg">sort
+criterion
+identifier,
+whose
+predicate
+is
+</ins><code><ins class="diff-chg">
+ldp:containerSortCollation
+</ins></code>
+and
+<ins class="diff-new">whose
+object
+identifies
+the
+collation
+used.
+LDP
+defines
+no
+values
+for
+use
+as
+the
+</ins>
+object
+<del class="diff-old">is
+a
+list
+</del>
+of
+<del class="diff-old">LDPC
+ordinal
+predicates.
+Ordering
+</del>
+<ins class="diff-chg">this
+triple.
+While
+it
+</ins>
+is
+<del class="diff-old">only
+ascending.
+The
+only
+ordinal
+predicate
+literal
+data
+types
+supported
+</del>
+<ins class="diff-chg">better
+for
+interoperability
+to
+use
+open
+standardized
+values,
+any
+value
+can
+be
+used.
+When
+the
+</ins><code><ins class="diff-chg">
+ldp:containerSortCollation
+</ins></code><ins class="diff-chg">
+triple
+is
+absent
+and
+the
+</ins><a title="page-ordering values"><ins class="diff-chg">
+page-ordering
+values
+</ins></a>
+are
+<del class="diff-old">those
+</del>
+<ins class="diff-chg">strings
+or
+simple
+literals
+[[!SPARQL-QUERY]],
+the
+resulting
+order
+is
+</ins>
+as
+defined
+by
+SPARQL
+SELECT’s
+ORDER
+BY
+clause
+<del class="diff-old">[
+SPARQL-QUERY
+</del>
+<ins class="diff-chg">[[!SPARQL-QUERY]]
+using
+two-argument
+</ins><code><ins class="diff-chg">
+fn:compare
+</ins></code>,<ins class="diff-chg">
+that
+is,
+it
+behaves
+as
+if
+</ins><code><ins class="diff-chg">
+http://www.w3.org/2005/xpath-functions/collation/codepoint
+</ins></code><ins class="diff-chg">
+was
+the
+specified
+collation.
+When
+the
+</ins><code><ins class="diff-chg">
+ldp:containerSortCollation
+</ins></code><ins class="diff-chg">
+triple
+is
+present
+and
+the
+</ins><a title="page-ordering values"><ins class="diff-chg">
+page-ordering
+values
+</ins>
+</a>
+<del class="diff-old">].
+</del>
+<ins class="diff-chg">are
+strings
+or
+simple
+literals
+[[!SPARQL-QUERY]],
+the
+resulting
+order
+is
+as
+defined
+by
+SPARQL
+SELECT’s
+ORDER
+BY
+clause
+[[!SPARQL-QUERY]]
+using
+three-argument
+</ins><code><ins class="diff-chg">
+fn:compare
+</ins></code>,<ins class="diff-chg">
+that
+is,
+the
+specified
+collation.
+When
+the
+</ins><code><ins class="diff-chg">
+ldp:containerSortCollation
+</ins></code><ins class="diff-chg">
+triple
+SHOULD
+be
+omitted
+for
+comparisons
+involving
+</ins><a title="page-ordering values"><ins class="diff-chg">
+page-ordering
+values
+</ins></a><ins class="diff-chg">
+for
+which
+[[!SPARQL-QUERY]]
+does
+not
+use
+collations.
+</ins></div><div class="ldp-issue-pending">
+<div class="ldp-issue-title">
+<del class="diff-old">ISSUE-14
+</del>
+<a href="http://www.w3.org/2012/ldp/track/issues/63">
+<ins class="diff-chg">ISSUE-63
+</ins>
+</a>
+</div>
+<del class="diff-old">Include
+clarifications
+about
+ordering
+in
+LDPC
+representations
+5.3.7.1
+The
+object
+of
+ldp:containerSortPredicates
+,
+the
+predicate
+used
+</del>
+<ins class="diff-chg">Need
+</ins>
+to
+<del class="diff-old">indicate
+ordering,
+MUST
+NOT
+change
+between
+subsequent
+pages.
+If
+it
+does,
+ordering
+among
+members
+of
+a
+</del>
+<ins class="diff-chg">be
+able
+to
+specify
+collation
+with
+</ins>
+container
+<del class="diff-old">across
+pages
+is
+undefined.
+See
+section
+5.1.4
+Ordering
+for
+additional
+details.
+</del>
+<ins class="diff-chg">ordering.
+Drafted
+per
+2013-06-18
+F2F
+resolution.
+</ins>
+</div>
+<del class="diff-old">5.4
+</del>
+</section>
+<section>
+<h2 id="ldpc-HTTP_POST">
+HTTP
+POST
+</h2>
+<p>
+This
+specification
+imposes
+the
+following
+new
+requirements
+on
+HTTP
+<code>
+POST
+</code>
+for
+LDPCs
+only
+when
+an
+LDPC
+supports
+that
+method.
+This
+specification
+does
+not
+impose
+any
+new
+requirement
+to
+support
+that
+method,
+and
+<del class="diff-old">[
+HTTP11
+]
+</del>
+<ins class="diff-chg">[[!HTTP11]]
+</ins>
+makes
+it
+optional.
+</p>
+<div id="ldpc-5_4_1" class="rule">
+5.4.1
+LDPC
+clients
+SHOULD
+create
+member
+resources
+by
+submitting
+a
+representation
+as
+the
+entity
+body
+of
+the
+HTTP
+<code>
+POST
+</code>
+to
+a
+known
+<del class="diff-old">LDPC
+.
+</del>
+<ins class="diff-chg">LDPC.
+If
+the
+resource
+was
+created
+successfully,
+</ins>
+LDPC
+servers
+MUST
+respond
+with
+status
+code
+201
+(Created)
+and
+the
+<code>
+Location
+</code>
+header
+set
+to
+the
+new
+resource’s
+URL.
+<ins class="diff-new">Clients
+shall
+not
+expect
+any
+representation
+in
+the
+response
+entity
+body
+on
+a
+201
+(Created)
+response.
+</ins>
+</div>
+<div id="ldpc-5_4_2" class="rule">
+5.4.2
+After
+a
+successful
+HTTP
+<code>
+POST
+</code>
+request
+to
+a
+<del class="diff-old">LDPC
+,
+</del>
+<ins class="diff-chg">LDPC,
+</ins>
+the
+new
+resource
+MUST
+appear
+as
+a
+member
+of
+the
+LDPC
+until
+the
+new
+resource
+is
+deleted
+or
+removed
+by
+other
+methods.
+An
+LDPC
+MAY
+also
+contain
+resources
+that
+were
+added
+through
+other
+means
+-
+for
+example
+through
+the
+user
+interface
+of
+the
+site
+that
+implements
+the
+<del class="diff-old">LDPC
+.
+ISSUE-35
+POSTing
+to
+a
+container
+MUST
+yield
+a
+fresh
+URI
+</del>
+<ins class="diff-chg">LDPC.
+</ins>
+</div>
+<div id="ldpc-5_4_3" class="rule">
+5.4.3
+LDPC
+servers
+MAY
+accept
+an
+HTTP
+<code>
+POST
+</code>
+of
+<del class="diff-old">non-
+RDF
+</del>
+<ins class="diff-chg">non-RDF
+</ins>
+representations
+for
+creation
+of
+any
+kind
+of
+resource,
+for
+example
+binary
+resources.
+</div>
+<div id="ldpc-5_4_4" class="rule">
+5.4.4
+For
+servers
+that
+support
+create,
+LDPC
+servers
+MUST
+create
+an
+LDPR
+from
+a
+RDF
+representation
+in
+the
+request
+entity
+body.
+The
+<ins class="diff-chg">newly
+created
+</ins>
+LDPR
+could
+also
+be
+a
+<del class="diff-old">LDPC
+,
+</del>
+<ins class="diff-chg">LDPC,
+</ins>
+therefore
+servers
+may
+allow
+the
+creations
+of
+LDPCs
+within
+a
+<del class="diff-old">LDPC
+.
+</del>
+<ins class="diff-chg">LDPC.
+</ins>
+</div>
+<div id="ldpc-5_4_5" class="rule">
+5.4.5
+<del class="diff-old">LDPC
+servers
+SHOULD
+NOT
+include
+the
+representation
+of
+the
+created
+resource
+in
+the
+entity
+body
+of
+a
+201
+(Created)
+response.
+In
+other
+words,
+clients
+should
+not
+expect
+any
+representation
+in
+the
+response
+entity
+body
+on
+a
+201
+(Created)
+response.
+ISSUE-39
+HTTP
+status
+codes
+used
+for
+creation
+5.4.6
+</del>
+LDPC
+servers
+MUST
+accept
+a
+request
+entity
+body
+with
+a
+request
+header
+of
+<code>
+Content-Type
+</code>
+with
+value
+of
+<code>
+text/turtle
+</code>
+<del class="diff-old">[
+TURTLE
+].
+</del>
+<ins class="diff-chg">[[!TURTLE]].
+</ins>
+</div>
+<del class="diff-old">5.4.7
+</del>
+<div id="ldpc-5_4_6" class="rule">
+<ins class="diff-chg">5.4.6
+</ins>
+LDPC
+servers
+SHOULD
+use
+the
+<code>
+Content-Type
+</code>
+request
+header
+to
+determine
+the
+representation
+format
+when
+the
+request
+has
+an
+entity
+body.
+When
+the
+header
+is
+absent,
+LDPC
+servers
+MAY
+infer
+the
+content
+type
+by
+inspecting
+the
+entity
+body
+contents
+<del class="diff-old">[
+HTTP11
+].
+</del>
+<ins class="diff-chg">[[!HTTP11]].
+</ins>
+</div>
+<del class="diff-old">5.4.8
+</del>
+<div id="ldpc-5_4_7" class="rule">
+<ins class="diff-chg">5.4.7
+</ins>
+In
+RDF
+representations,
+LDPC
+servers
+MUST
+interpret
+the
+null
+relative
+URI
+for
+the
+subject
+of
+triples
+in
+the
+LDPR
+representation
+in
+the
+request
+entity
+body
+as
+referring
+to
+the
+entity
+in
+the
+request
+body.
+Commonly,
+that
+entity
+is
+the
+model
+for
+the
+“to
+be
+created”
+<del class="diff-old">LDPR
+,
+</del>
+<ins class="diff-chg">LDPR,
+</ins>
+so
+triples
+whose
+subject
+is
+the
+null
+relative
+URI
+will
+usually
+result
+in
+triples
+in
+the
+created
+resource
+whose
+subject
+is
+the
+created
+resource.
+<del class="diff-old">ISSUE-20
+Identifying
+and
+naming
+POSTed
+resources
+</del>
+<ins class="diff-chg">&#160;
+</ins>
+</div>
+<del class="diff-old">5.4.9
+</del>
+<div id="ldpc-5_4_8" class="rule">
+<ins class="diff-chg">5.4.8
+</ins>
+LDPC
+servers
+SHOULD
+assign
+the
+subject
+URI
+for
+the
+resource
+to
+be
+created
+using
+server
+application
+specific
+<del class="diff-old">rules.
+ISSUE-43
+hint
+at
+naming
+</del>
+<ins class="diff-chg">rules
+in
+the
+absence
+of
+</ins>
+a
+<del class="diff-old">resource
+on
+creation
+</del>
+<a href="#ldpc-5_4_10">
+<ins class="diff-chg">client
+hint
+</ins></a>.
+</div>
+<del class="diff-old">5.4.10
+</del>
+<div id="ldpc-5_4_8_1" class="rule">
+<ins class="diff-chg">5.4.8.1
+For
+RDF
+representations,
+LDPC
+servers
+MUST
+assign
+the
+base-URI
+for
+[[!RFC3987]]
+relative-URI
+resolution
+to
+be
+the
+URI
+of
+the
+created
+subject
+resource.
+</ins></div><div id="ldpc-5_4_9" class="rule"><ins class="diff-chg">
+5.4.9
+</ins>
+LDPC
+servers
+SHOULD
+allow
+clients
+to
+create
+new
+resources
+without
+requiring
+detailed
+knowledge
+of
+application-specific
+constraints.
+This
+is
+a
+consequence
+of
+the
+requirement
+to
+<a href="#ldpr-4_1_9">
+enable
+simple
+creation
+and
+modification
+</a>
+of
+LPDRs.
+</div>
+<div id="ldpc-5_4_10" class="rule">
+<ins class="diff-new">5.4.10
+LDPC
+servers
+MAY
+allow
+clients
+to
+suggest
+the
+URI
+for
+a
+resource
+created
+through
+</ins><code><ins class="diff-new">
+POST
+</ins></code>,<ins class="diff-new">
+using
+the
+HTTP
+</ins><code><ins class="diff-new">
+Slug
+</ins></code><ins class="diff-new">
+header
+as
+defined
+in
+[[!RFC5023]].
+LDP
+adds
+no
+new
+requirements
+to
+this
+usage,
+so
+its
+presence
+functions
+as
+a
+client
+hint
+to
+the
+server
+providing
+a
+desired
+string
+to
+be
+incorporated
+into
+the
+server's
+final
+choice
+of
+resource
+URI.
+</ins></div><div id="ldpc-5_4_11" class="rule"><ins class="diff-new">
+5.4.11
+LDPC
+servers
+that
+allow
+member
+creation
+via
+</ins><code><ins class="diff-new">
+POST
+</ins></code><ins class="diff-new">
+SHOULD
+NOT
+re-use
+URIs,
+per
+the
+</ins><a href="#ldpc-5_2_9"><ins class="diff-new">
+general
+requirements
+on
+LDPCs
+</ins></a>.
+</div>
+<div id="ldpc-5_4_12" class="rule">
+<ins class="diff-chg">5.4.12
+Upon
+successful
+creation
+of
+a
+non-RDF
+and
+therefore
+non-LDPR
+member
+(HTTP
+status
+code
+of
+201-Created
+and
+URI
+indicated
+by
+</ins><code><ins class="diff-chg">
+Location
+</ins></code><ins class="diff-chg">
+response
+header),
+LDPC
+servers
+MAY
+create
+an
+associated
+LDPR
+to
+contain
+data
+about
+the
+created
+resource.
+If
+an
+LDPC
+server
+creates
+this
+associated
+LDPR
+it
+MUST
+indicate
+its
+location
+on
+the
+HTTP
+response
+using
+the
+HTTP
+response
+header
+</ins><code><ins class="diff-chg">
+Link
+</ins></code><ins class="diff-chg">
+and
+relationship
+type
+</ins><code><ins class="diff-chg">
+meta
+</ins></code><ins class="diff-chg">
+and
+</ins><code><ins class="diff-chg">
+href
+</ins></code><ins class="diff-chg">
+to
+be
+the
+URI
+of
+the
+meta-resource
+[[!RFC5988]].
+</ins></div><div class="ldp-issue-pending"><div class="ldp-issue-title">
+<del class="diff-old">5.5
+</del>
+<a href="http://www.w3.org/2012/ldp/track/issues/80">
+<ins class="diff-chg">ISSUE-80
+</ins></a></div><ins class="diff-chg">
+How
+does
+a
+client
+know
+which
+</ins><code><ins class="diff-chg">
+POST
+</ins></code><ins class="diff-chg">
+requests
+create
+new
+resources.
+</ins><p><ins class="diff-chg">
+Note
+from
+editor:
+the
+MUST
+here
+keeps
+this
+aligned
+with
+what
+we
+decided
+for
+OPTIONS
+on
+PATCH;
+in
+both
+cases
+the
+header
+registration
+says
+SHOULD,
+and
+the
+LDP
+spec
+says
+MUST.
+What
+makes
+that
+look
+a
+bit
+odd
+is
+that
+in
+the
+Accept-Post
+case,
+the
+registration
+and
+LDP
+are
+the
+same
+document.
+Thus
+I
+added
+informative
+text
+here
+explicitly
+talking
+to
+the
+apparent
+discrepancy.
+</ins></p></div><div id="ldpr-5_4_13" class="rule"><ins class="diff-chg">
+5.4.13
+LDPR
+servers
+that
+support
+</ins><code><ins class="diff-chg">
+POST
+</ins></code><ins class="diff-chg">
+MUST
+include
+an
+</ins><a href="#header-accept-post"><code><ins class="diff-chg">
+Accept-Post
+</ins></code><ins class="diff-chg">
+response
+header
+</ins></a><ins class="diff-chg">
+on
+HTTP
+</ins><code><ins class="diff-chg">
+OPTIONS
+</ins></code><ins class="diff-chg">
+responses,
+listing
+post
+document
+media
+type(s)
+supported
+by
+the
+server.
+LDP
+only
+specifies
+the
+use
+of
+</ins><code><ins class="diff-chg">
+POST
+</ins></code><ins class="diff-chg">
+for
+the
+purpose
+of
+creating
+new
+resources,
+but
+a
+server
+can
+accept
+</ins><code><ins class="diff-chg">
+POST
+</ins></code><ins class="diff-chg">
+requests
+with
+other
+semantics.
+While
+"POST
+to
+create"
+is
+a
+common
+interaction
+pattern,
+LDP
+clients
+are
+not
+guaranteed,
+even
+when
+making
+requests
+to
+an
+LDP
+server,
+that
+every
+successful
+</ins><code><ins class="diff-chg">
+POST
+</ins></code><ins class="diff-chg">
+request
+will
+result
+in
+the
+creation
+of
+a
+new
+resource;
+they
+must
+rely
+on
+out
+of
+band
+information
+for
+knowledge
+of
+which
+</ins><code><ins class="diff-chg">
+POST
+</ins></code><ins class="diff-chg">
+requests,
+if
+any,
+will
+have
+the
+"create
+new
+resource"
+semantic.
+This
+requirement
+on
+LDP
+servers
+is
+intentionally
+stronger
+than
+the
+one
+levied
+in
+the
+</ins><a href="#header-accept-post"><ins class="diff-chg">
+header
+registration
+</ins></a><ins class="diff-chg">
+;
+it
+is
+unrealistic
+to
+expect
+all
+existing
+resources
+that
+support
+</ins><code><ins class="diff-chg">
+POST
+</ins></code><ins class="diff-chg">
+to
+suddenly
+return
+a
+new
+header
+or
+for
+all
+new
+specifications
+constraining
+</ins><code><ins class="diff-chg">
+POST
+</ins></code><ins class="diff-chg">
+to
+be
+aware
+of
+its
+existence
+and
+require
+it,
+but
+it
+is
+a
+reasonable
+requirement
+for
+new
+specifications
+such
+as
+LDP.
+</ins></div><div class="ldp-issue-pending"><div class="ldp-issue-title"><a href="http://www.w3.org/2012/ldp/track/issues/79"><ins class="diff-chg">
+ISSUE-79
+</ins></a></div><ins class="diff-chg">
+ldp:contains
+</ins></div><div id="ldpr-5_4_14" class="rule"><ins class="diff-chg">
+5.4.14
+LDPCs
+that
+create
+new
+member
+resources
+MAY
+add
+triples
+to
+the
+container
+as
+part
+of
+member
+creation
+to
+reflect
+its
+factory
+role.
+LDP
+defines
+the
+</ins><code><ins class="diff-chg">
+ldp:contains
+</ins></code><ins class="diff-chg">
+predicate
+for
+this
+purpose.
+An
+LDPC
+that
+tracks
+members
+created
+through
+the
+LDPC
+MUST
+add
+a
+triple
+whose
+subject
+is
+the
+container's
+URI,
+whose
+predicate
+is
+</ins><code><ins class="diff-chg">
+ldp:contains
+</ins></code>,<ins class="diff-chg">
+and
+whose
+object
+is
+the
+newly
+created
+member
+resource's
+URI;
+it
+MAY
+add
+other
+triples
+as
+well.
+</ins></div></section><section><h2 id="ldpc-HTTP_PUT">
+HTTP
+PUT
+</h2>
+<p>
+This
+specification
+imposes
+the
+following
+new
+requirements
+on
+HTTP
+<code>
+PUT
+</code>
+for
+LDPCs
+only
+when
+an
+LDPC
+supports
+that
+method.
+This
+specification
+does
+not
+impose
+any
+new
+requirement
+to
+support
+that
+method,
+and
+<del class="diff-old">[
+HTTP11
+]
+</del>
+<ins class="diff-chg">[[!HTTP11]]
+</ins>
+makes
+it
+optional.
+</p>
+<div id="ldpc-5_5_1" class="rule">
+5.5.1
+LDPC
+servers
+SHOULD
+NOT
+allow
+HTTP
+<code>
+PUT
+</code>
+to
+update
+a
+<del class="diff-old">LDPC
+’s
+</del>
+<ins class="diff-chg">LDPC’s
+</ins>
+members;
+if
+the
+server
+receives
+such
+a
+request,
+it
+SHOULD
+respond
+with
+a
+409
+(Conflict)
+status
+code.
+</div>
+<div id="ldpc-5_5_2" class="rule">
+5.5.2
+LDPC
+servers
+MAY
+allow
+updating
+LDPC
+non-membership
+properties
+using
+HTTP
+<code>
+PUT
+</code>
+on
+<del class="diff-old">&lt;containerURL&gt;?non-member-properties
+,
+</del>
+<ins class="diff-chg">a