--- a/ldp-ucr.html Tue Jun 04 19:10:09 2013 +0200
+++ b/ldp-ucr.html Mon Jun 17 17:07:40 2013 +0100
@@ -1484,6 +1484,26 @@
</section>
<section>
+ <h2 id="uc-pagination">Use case: Retrieve a large resource description in multiple parts</h2>
+
+This use case addresses a problem with the “resource-centric” approach to interacting with RDF data. The problem is that some resources participate in a very large number of triples, and therefore a “resource-centric” granularity leads to resource descriptions that are too large to be practically processed in a single HTTP request. This use-case applies to all resources, not just containers.
+
+ <ul>
+ <li>It's not really the resource description that's being paginated, but the values of a particular property.</li>
+ <li>The server is responsible for pagination, and may decide how large the pages are.</li>
+ <li>Pagination should apply symmetrically to both <emph>incoming</emph> and <emph>outgoing</emph> properties.</li>
+ <li>The next-page URL should be opaque.</li>
+ </ul>
+
+ <section>
+ <h3 id="scen-access_media_resources">Primary scenario: large numbers of contacts</h3>
+
+In user-story, <a href="#story-social" title="Social Contacts">Maintaining Social Contact Information</a>, it is not uncommon for users to have a very large number of contacts.
+This leads to a very large resource description, especially if some basic information about the contacts is included as well. The size of this representation may be so large that retrieval in a single HTTP request is impractical.
+ </section>
+ </section>
+
+ <section>
<h2 id="uc-manage_media_resources">Use Case: Manage media resources</h2>
<p>It should be possible to easily add non-RDF media resources
to containers that accept them. Media resources may be updated and