--- a/ttml-ww-profiles/ttml-ww-profiles.html	Thu Oct 29 10:40:27 2015 +0900
+++ b/ttml-ww-profiles/ttml-ww-profiles.html	Thu Oct 29 13:39:23 2015 +0900
@@ -444,7 +444,7 @@
       
     
   
-</section><section id="toc"><h2 class="introductory" id="h-toc" resource="#h-toc"><span property="xhv:role" resource="xhv:heading">Table of Contents</span></h2><ul class="toc" role="directory" id="respecContents"><li class="tocline"><a href="#scope" class="tocxref"><span class="secno">1. </span>Scope</a></li><li class="tocline"><a href="#conventions" class="tocxref"><span class="secno">2. </span>Documentation Conventions</a></li><li class="tocline"><a href="#terms" class="tocxref"><span class="secno">3. </span>Terms and Definitions</a></li><li class="tocline"><a href="#conformance" class="tocxref"><span class="secno">4. </span>Conformance</a></li><li class="tocline"><a href="#profiles" class="tocxref"><span class="secno">5. </span>Profiles</a><ul class="toc"><li class="tocline"><a href="#general" class="tocxref"><span class="secno">5.1 </span>General</a></li><li class="tocline"><a href="#text-profile" class="tocxref"><span class="secno">5.2 </span>Text Profile</a></li><li class="tocline"><a href="#image-profile" class="tocxref"><span class="secno">5.3 </span>Image Profile</a></li></ul></li><li class="tocline"><a href="#common-constraints" class="tocxref"><span class="secno">6. </span>Common Constraints</a><ul class="toc"><li class="tocline"><a href="#document-encoding" class="tocxref"><span class="secno">6.1 </span>Document Encoding</a></li><li class="tocline"><a href="#foreign-element-and-attributes" class="tocxref"><span class="secno">6.2 </span>Foreign Element and Attributes</a></li><li class="tocline"><a href="#namespaces" class="tocxref"><span class="secno">6.3 </span>Namespaces</a></li><li class="tocline"><a href="#overflow" class="tocxref"><span class="secno">6.4 </span>Overflow</a></li><li class="tocline"><a href="#related-video-object" class="tocxref"><span class="secno">6.5 </span>Related Video Object</a></li><li class="tocline"><a href="#synchronization" class="tocxref"><span class="secno">6.6 </span>Synchronization</a></li><li class="tocline"><a href="#extensions" class="tocxref"><span class="secno">6.7 </span>Extensions</a><ul class="toc"><li class="tocline"><a href="#ttp-aspectRatio" class="tocxref"><span class="secno">6.7.1 </span>ittp:aspectRatio</a></li><li class="tocline"><a href="#ttp-progressivelyDecodable" class="tocxref"><span class="secno">6.7.2 </span>ittp:progressivelyDecodable</a></li><li class="tocline"><a href="#tts-forcedDisplay" class="tocxref"><span class="secno">6.7.3 </span>itts:forcedDisplay</a></li><li class="tocline"><a href="#ttm-altText" class="tocxref"><span class="secno">6.7.4 </span>ittm:altText</a></li></ul></li><li class="tocline"><a href="#region" class="tocxref"><span class="secno">6.8 </span>Region</a><ul class="toc"><li class="tocline"><a href="#presented-region" class="tocxref"><span class="secno">6.8.1 </span>Presented Region</a></li><li class="tocline"><a href="#dimensions-and-position" class="tocxref"><span class="secno">6.8.2 </span>Dimensions and Position</a></li><li class="tocline"><a href="#maximum-number" class="tocxref"><span class="secno">6.8.3 </span>Maximum number</a></li></ul></li><li class="tocline"><a href="#hypothetical-render-model-1" class="tocxref"><span class="secno">6.9 </span>Hypothetical Render Model</a></li><li class="tocline"><a href="#common-features" class="tocxref"><span class="secno">6.10 </span>Features</a></li></ul></li><li class="tocline"><a href="#text-profile-constraints" class="tocxref"><span class="secno">7. </span>Text Profile Constraints</a><ul class="toc"><li class="tocline"><a href="#text-profile-designator" class="tocxref"><span class="secno">7.1 </span>Profile Designator</a></li><li class="tocline"><a href="#recommended-character-sets" class="tocxref"><span class="secno">7.2 </span>Recommended Character Sets</a></li><li class="tocline"><a href="#reference-fonts-1" class="tocxref"><span class="secno">7.3 </span>Reference Fonts</a></li><li class="tocline"><a href="#uax14" class="tocxref"><span class="secno">7.4 </span>#lineBreak-uax14</a></li><li class="tocline"><a href="#features" class="tocxref"><span class="secno">7.5 </span>Features</a></li></ul></li><li class="tocline"><a href="#image-profile-constraints" class="tocxref"><span class="secno">8. </span>Image Profile Constraints</a><ul class="toc"><li class="tocline"><a href="#image-profile-designator" class="tocxref"><span class="secno">8.1 </span>Profile Designator</a></li><li class="tocline"><a href="#presented-image" class="tocxref"><span class="secno">8.2 </span>Presented Image</a><ul class="toc"><li class="tocline"><a href="#definition" class="tocxref"><span class="secno">8.2.1 </span>Definition</a></li><li class="tocline"><a href="#number-per-region" class="tocxref"><span class="secno">8.2.2 </span>Number per Region</a></li></ul></li><li class="tocline"><a href="#div-element" class="tocxref"><span class="secno">8.3 </span><code>div</code> element</a></li><li class="tocline"><a href="#features-1" class="tocxref"><span class="secno">8.4 </span>Features</a></li></ul></li><li class="tocline"><a href="#hypothetical-render-model" class="tocxref"><span class="secno">9. </span>Hypothetical Render Model</a><ul class="toc"><li class="tocline"><a href="#overview" class="tocxref"><span class="secno">9.1 </span>Overview</a></li><li class="tocline"><a href="#hypothetical-render-model-general" class="tocxref"><span class="secno">9.2 </span>General</a></li><li class="tocline"><a href="#paint-regions" class="tocxref"><span class="secno">9.3 </span>Paint Regions</a></li><li class="tocline"><a href="#paint-images" class="tocxref"><span class="secno">9.4 </span>Paint Images</a></li><li class="tocline"><a href="#paint-text" class="tocxref"><span class="secno">9.5 </span>Paint Text</a></li></ul></li><li class="tocline"><a href="#reference-fonts" class="tocxref"><span class="secno">A. </span>Reference Fonts</a></li><li class="tocline"><a href="#recommended-unicode-code-points-per-language" class="tocxref"><span class="secno">B. </span>Recommended Character Sets</a></li><li class="tocline"><a href="#forced-content" class="tocxref"><span class="secno">C. </span>Forced content (non-normative)</a></li><li class="tocline"><a href="#wcag-applications" class="tocxref"><span class="secno">D. </span>WCAG Considerations</a></li><li class="tocline"><a href="#sample-instance" class="tocxref"><span class="secno">E. </span>Sample Document Instance (non-normative)</a></li><li class="tocline"><a href="#features-and-extensions" class="tocxref"><span class="secno">F. </span>Extensions</a><ul class="toc"><li class="tocline"><a href="#general-1" class="tocxref"><span class="secno">F.1 </span>General</a></li><li class="tocline"><a href="#progressivelydecodable" class="tocxref"><span class="secno">F.2 </span>#progressivelyDecodable</a></li><li class="tocline"><a href="#aspectratio" class="tocxref"><span class="secno">F.3 </span>#aspectRatio</a></li><li class="tocline"><a href="#forceddisplay" class="tocxref"><span class="secno">F.4 </span>#forcedDisplay</a></li><li class="tocline"><a href="#alttext" class="tocxref"><span class="secno">F.5 </span>#altText</a></li><li class="tocline"><a href="#linepadding" class="tocxref"><span class="secno">F.6 </span>#linePadding</a></li><li class="tocline"><a href="#multirowalign" class="tocxref"><span class="secno">F.7 </span>#multiRowAlign</a></li></ul></li><li class="tocline"><a href="#references" class="tocxref"><span class="secno">G. </span>References</a><ul class="toc"><li class="tocline"><a href="#normative-references" class="tocxref"><span class="secno">G.1 </span>Normative references</a></li><li class="tocline"><a href="#informative-references" class="tocxref"><span class="secno">G.2 </span>Informative references</a></li></ul></li></ul></section>
+</section><section id="toc"><h2 class="introductory" id="h-toc" resource="#h-toc"><span property="xhv:role" resource="xhv:heading">Table of Contents</span></h2><ul class="toc" role="directory" id="respecContents"><li class="tocline"><a href="#scope" class="tocxref"><span class="secno">1. </span>Scope</a></li><li class="tocline"><a href="#conventions" class="tocxref"><span class="secno">2. </span>Documentation Conventions</a></li><li class="tocline"><a href="#terms" class="tocxref"><span class="secno">3. </span>Terms and Definitions</a></li><li class="tocline"><a href="#conformance" class="tocxref"><span class="secno">4. </span>Conformance</a></li><li class="tocline"><a href="#profiles" class="tocxref"><span class="secno">5. </span>Profiles</a><ul class="toc"><li class="tocline"><a href="#general" class="tocxref"><span class="secno">5.1 </span>General</a></li><li class="tocline"><a href="#text-profile" class="tocxref"><span class="secno">5.2 </span>Text Profile</a></li><li class="tocline"><a href="#image-profile" class="tocxref"><span class="secno">5.3 </span>Image Profile</a></li></ul></li><li class="tocline"><a href="#common-constraints" class="tocxref"><span class="secno">6. </span>Common Constraints</a><ul class="toc"><li class="tocline"><a href="#document-encoding" class="tocxref"><span class="secno">6.1 </span>Document Encoding</a></li><li class="tocline"><a href="#foreign-element-and-attributes" class="tocxref"><span class="secno">6.2 </span>Foreign Element and Attributes</a></li><li class="tocline"><a href="#namespaces" class="tocxref"><span class="secno">6.3 </span>Namespaces</a></li><li class="tocline"><a href="#overflow" class="tocxref"><span class="secno">6.4 </span>Overflow</a></li><li class="tocline"><a href="#related-video-object" class="tocxref"><span class="secno">6.5 </span>Related Video Object</a></li><li class="tocline"><a href="#synchronization" class="tocxref"><span class="secno">6.6 </span>Synchronization</a></li><li class="tocline"><a href="#extensions" class="tocxref"><span class="secno">6.7 </span>Extensions</a><ul class="toc"><li class="tocline"><a href="#ttp-aspectRatio" class="tocxref"><span class="secno">6.7.1 </span>ittp:aspectRatio</a></li><li class="tocline"><a href="#ttp-progressivelyDecodable" class="tocxref"><span class="secno">6.7.2 </span>ittp:progressivelyDecodable</a></li><li class="tocline"><a href="#tts-forcedDisplay" class="tocxref"><span class="secno">6.7.3 </span>itts:forcedDisplay</a></li><li class="tocline"><a href="#ttm-altText" class="tocxref"><span class="secno">6.7.4 </span>ittm:altText</a></li></ul></li><li class="tocline"><a href="#region" class="tocxref"><span class="secno">6.8 </span>Region</a><ul class="toc"><li class="tocline"><a href="#presented-region" class="tocxref"><span class="secno">6.8.1 </span>Presented Region</a></li><li class="tocline"><a href="#dimensions-and-position" class="tocxref"><span class="secno">6.8.2 </span>Dimensions and Position</a></li><li class="tocline"><a href="#maximum-number" class="tocxref"><span class="secno">6.8.3 </span>Maximum number</a></li></ul></li><li class="tocline"><a href="#hypothetical-render-model-1" class="tocxref"><span class="secno">6.9 </span>Hypothetical Render Model</a></li><li class="tocline"><a href="#common-features" class="tocxref"><span class="secno">6.10 </span>Features</a></li></ul></li><li class="tocline"><a href="#text-profile-constraints" class="tocxref"><span class="secno">7. </span>Text Profile Constraints</a><ul class="toc"><li class="tocline"><a href="#text-profile-designator" class="tocxref"><span class="secno">7.1 </span>Profile Designator</a></li><li class="tocline"><a href="#recommended-character-sets" class="tocxref"><span class="secno">7.2 </span>Recommended Character Sets</a></li><li class="tocline"><a href="#reference-fonts-1" class="tocxref"><span class="secno">7.3 </span>Reference Fonts</a></li><li class="tocline"><a href="#uax14" class="tocxref"><span class="secno">7.4 </span>#lineBreak-uax14</a></li><li class="tocline"><a href="#features" class="tocxref"><span class="secno">7.5 </span>Features</a></li></ul></li><li class="tocline"><a href="#image-profile-constraints" class="tocxref"><span class="secno">8. </span>Image Profile Constraints</a><ul class="toc"><li class="tocline"><a href="#image-profile-designator" class="tocxref"><span class="secno">8.1 </span>Profile Designator</a></li><li class="tocline"><a href="#presented-image" class="tocxref"><span class="secno">8.2 </span>Presented Image</a><ul class="toc"><li class="tocline"><a href="#definition" class="tocxref"><span class="secno">8.2.1 </span>Definition</a></li><li class="tocline"><a href="#number-per-region" class="tocxref"><span class="secno">8.2.2 </span>Number per Region</a></li></ul></li><li class="tocline"><a href="#div-element" class="tocxref"><span class="secno">8.3 </span><code>div</code> element</a></li><li class="tocline"><a href="#features-1" class="tocxref"><span class="secno">8.4 </span>Features</a></li></ul></li><li class="tocline"><a href="#hypothetical-render-model" class="tocxref"><span class="secno">9. </span>Hypothetical Render Model</a><ul class="toc"><li class="tocline"><a href="#overview" class="tocxref"><span class="secno">9.1 </span>Overview</a></li><li class="tocline"><a href="#hypothetical-render-model-general" class="tocxref"><span class="secno">9.2 </span>General</a></li><li class="tocline"><a href="#paint-regions" class="tocxref"><span class="secno">9.3 </span>Paint Regions</a></li><li class="tocline"><a href="#paint-images" class="tocxref"><span class="secno">9.4 </span>Paint Images</a></li><li class="tocline"><a href="#paint-text" class="tocxref"><span class="secno">9.5 </span>Paint Text</a></li></ul></li><li class="tocline"><a href="#reference-fonts" class="tocxref"><span class="secno">A. </span>Reference Fonts</a></li><li class="tocline"><a href="#recommended-unicode-code-points-per-language" class="tocxref"><span class="secno">B. </span>Recommended Character Sets</a></li><li class="tocline"><a href="#forced-content" class="tocxref"><span class="secno">C. </span>Forced content (non-normative)</a></li><li class="tocline"><a href="#wcag-applications" class="tocxref"><span class="secno">D. </span>WCAG Considerations</a></li><li class="tocline"><a href="#sample-instance" class="tocxref"><span class="secno">E. </span>Sample Document Instance (non-normative)</a></li><li class="tocline"><a href="#features-and-extensions" class="tocxref"><span class="secno">F. </span>Extensions</a><ul class="toc"><li class="tocline"><a href="#general-1" class="tocxref"><span class="secno">F.1 </span>General</a></li><li class="tocline"><a href="#progressivelydecodable" class="tocxref"><span class="secno">F.2 </span>#progressivelyDecodable</a></li><li class="tocline"><a href="#aspectratio" class="tocxref"><span class="secno">F.3 </span>#aspectRatio</a></li><li class="tocline"><a href="#forceddisplay" class="tocxref"><span class="secno">F.4 </span>#forcedDisplay</a></li><li class="tocline"><a href="#alttext" class="tocxref"><span class="secno">F.5 </span>#altText</a></li><li class="tocline"><a href="#linepadding" class="tocxref"><span class="secno">F.6 </span>#linePadding</a></li><li class="tocline"><a href="#multirowalign" class="tocxref"><span class="secno">F.7 </span>#multiRowAlign</a></li></ul></li><li class="tocline"><a href="#xml-schemas" class="tocxref"><span class="secno">G. </span>XML Schema Definitions (non-normative)</a></li><li class="tocline"><a href="#references" class="tocxref"><span class="secno">H. </span>References</a><ul class="toc"><li class="tocline"><a href="#normative-references" class="tocxref"><span class="secno">H.1 </span>Normative references</a></li><li class="tocline"><a href="#informative-references" class="tocxref"><span class="secno">H.2 </span>Informative references</a></li></ul></li></ul></section>
 
   
 
@@ -3254,9 +3254,23 @@
       support for values of the <code>ebutts:multiRowAlign</code> attribute specified in [<cite><a class="bibref" href="#bib-EBU-TT-D">EBU-TT-D</a></cite>].</p>
     </section>
   </section>
-
-
-<section id="references" class="appendix" typeof="bibo:Chapter" resource="#references" property="bibo:hasPart"><!--OddPage--><h2 id="h-references" resource="#h-references"><span property="xhv:role" resource="xhv:heading"><span class="secno">G. </span>References</span></h2><section id="normative-references" typeof="bibo:Chapter" resource="#normative-references" property="bibo:hasPart"><h3 id="h-normative-references" resource="#h-normative-references"><span property="xhv:role" resource="xhv:heading"><span class="secno">G.1 </span>Normative references</span></h3><dl class="bibliography" resource=""><dt id="bib-CLDR">[CLDR]</dt><dd>Unicode Consortium. <a href="http://cldr.unicode.org" property="dc:requires">The Common Locale Data Repository Project</a>
+	
+	<section class="appendix" id="xml-schemas" typeof="bibo:Chapter" resource="#xml-schemas" property="bibo:hasPart">
+    <!--OddPage--><h2 id="h-xml-schemas" resource="#h-xml-schemas"><span property="xhv:role" resource="xhv:heading"><span class="secno">G. </span>XML Schema Definitions (non-normative)</span></h2>
+		
+		<p>XML Schema definitions (see [<cite><a class="bibref" href="#bib-xmlschema-1">xmlschema-1</a></cite>]) for extension vocabulary defined 
+		by this specification are provided <a href="./xml-schemas">here</a> for convenience.</p>
+
+		<p>These definitions are non-normative and are not sufficient to validate conformance of a <a href="#dfn-document-instance" class="internalDFN" data-link-type="dfn">Document Instance</a>.</p>
+				
+		<p>In any case where a definition specified by this appendix diverge from the prose of the specification, 
+		then the latter takes precedence.</p>
+		
+
+	</section>
+
+
+<section id="references" class="appendix" typeof="bibo:Chapter" resource="#references" property="bibo:hasPart"><!--OddPage--><h2 id="h-references" resource="#h-references"><span property="xhv:role" resource="xhv:heading"><span class="secno">H. </span>References</span></h2><section id="normative-references" typeof="bibo:Chapter" resource="#normative-references" property="bibo:hasPart"><h3 id="h-normative-references" resource="#h-normative-references"><span property="xhv:role" resource="xhv:heading"><span class="secno">H.1 </span>Normative references</span></h3><dl class="bibliography" resource=""><dt id="bib-CLDR">[CLDR]</dt><dd>Unicode Consortium. <a href="http://cldr.unicode.org" property="dc:requires">The Common Locale Data Repository Project</a>
 </dd><dt id="bib-EBU-TT-D">[EBU-TT-D]</dt><dd>European Broadcasting Union (EBU). <a href="https://tech.ebu.ch/docs/tech/tech3380.pdf" property="dc:requires">Tech 3380, EBU-TT-D Subtitling Distribution Format Version 1.0</a>
 </dd><dt id="bib-PNG">[PNG]</dt><dd>Tom Lane. <a href="http://www.w3.org/TR/PNG" property="dc:requires"><cite>Portable Network Graphics (PNG) Specification (Second Edition)</cite></a>. 10 November 2003. W3C Recommendation. URL: <a href="http://www.w3.org/TR/PNG" property="dc:requires">http://www.w3.org/TR/PNG</a>
 </dd><dt id="bib-RFC2119">[RFC2119]</dt><dd>S. Bradner. <a href="https://tools.ietf.org/html/rfc2119" property="dc:requires"><cite>Key words for use in RFCs to Indicate Requirement Levels</cite></a>. March 1997. Best Current Practice. URL: <a href="https://tools.ietf.org/html/rfc2119" property="dc:requires">https://tools.ietf.org/html/rfc2119</a>
@@ -3265,10 +3279,11 @@
 </dd><dt id="bib-UNICODE">[UNICODE]</dt><dd><a href="http://www.unicode.org/versions/latest/" property="dc:requires"><cite>The Unicode Standard</cite></a>. URL: <a href="http://www.unicode.org/versions/latest/" property="dc:requires">http://www.unicode.org/versions/latest/</a>
 </dd><dt id="bib-WCAG20">[WCAG20]</dt><dd>Ben Caldwell; Michael Cooper; Loretta Guarino Reid; Gregg Vanderheiden et al. <a href="http://www.w3.org/TR/WCAG20/" property="dc:requires"><cite>Web Content Accessibility Guidelines (WCAG) 2.0</cite></a>. 11 December 2008. W3C Recommendation. URL: <a href="http://www.w3.org/TR/WCAG20/" property="dc:requires">http://www.w3.org/TR/WCAG20/</a>
 </dd><dt id="bib-xml-names">[xml-names]</dt><dd>Tim Bray; Dave Hollander; Andrew Layman; Richard Tobin; Henry Thompson et al. <a href="http://www.w3.org/TR/xml-names" property="dc:requires"><cite>Namespaces in XML 1.0 (Third Edition)</cite></a>. 8 December 2009. W3C Recommendation. URL: <a href="http://www.w3.org/TR/xml-names" property="dc:requires">http://www.w3.org/TR/xml-names</a>
-</dd></dl></section><section id="informative-references" typeof="bibo:Chapter" resource="#informative-references" property="bibo:hasPart"><h3 id="h-informative-references" resource="#h-informative-references"><span property="xhv:role" resource="xhv:heading"><span class="secno">G.2 </span>Informative references</span></h3><dl class="bibliography" resource=""><dt id="bib-CEA-608">[CEA-608]</dt><dd><a href="http://www.ce.org/Standards/Standard-Listings/R4-3-Television-Data-Systems-Subcommittee/Line-21-Data-Service.aspx" property="dc:references">Line-21 Data Services</a>, ANSI/CEA Standard.
+</dd></dl></section><section id="informative-references" typeof="bibo:Chapter" resource="#informative-references" property="bibo:hasPart"><h3 id="h-informative-references" resource="#h-informative-references"><span property="xhv:role" resource="xhv:heading"><span class="secno">H.2 </span>Informative references</span></h3><dl class="bibliography" resource=""><dt id="bib-CEA-608">[CEA-608]</dt><dd><a href="http://www.ce.org/Standards/Standard-Listings/R4-3-Television-Data-Systems-Subcommittee/Line-21-Data-Service.aspx" property="dc:references">Line-21 Data Services</a>, ANSI/CEA Standard.
 </dd><dt id="bib-CEA-708">[CEA-708]</dt><dd><a href="http://www.ce.org/Standards/Standard-Listings/R4-3-Television-Data-Systems-Subcommittee/CEA-708-D.aspx" property="dc:references">Digital Television (DTV) Closed Captioning</a>, ANSI/CEA Standard.
 </dd><dt id="bib-HTML5">[HTML5]</dt><dd>Ian Hickson; Robin Berjon; Steve Faulkner; Travis Leithead; Erika Doyle Navara; Edward O'Connor; Silvia Pfeiffer. <a href="http://www.w3.org/TR/html5/" property="dc:references"><cite>HTML5</cite></a>. 28 October 2014. W3C Recommendation. URL: <a href="http://www.w3.org/TR/html5/" property="dc:references">http://www.w3.org/TR/html5/</a>
 </dd><dt id="bib-SUBM">[SUBM]</dt><dd>World Wide Web Consortium (W3C). <a href="http://www.w3.org/Submission/2013/SUBM-ttml-ww-profiles-20130607/" property="dc:references">TTML Text and Image Profiles for Internet Media Subtitles and Captions</a> (Member Submission, 07 June 2013)
 </dd><dt id="bib-namespaceState">[namespaceState]</dt><dd>Norman Walsh. <a href="http://www.w3.org/TR/namespaceState/" property="dc:references"><cite>The Disposition of Names in an XML Namespace</cite></a>. 29 March 2006. W3C Working Draft. URL: <a href="http://www.w3.org/TR/namespaceState/" property="dc:references">http://www.w3.org/TR/namespaceState/</a>
 </dd><dt id="bib-ttml10-sdp-us">[ttml10-sdp-us]</dt><dd>Glenn Adams; Monica Martin; Sean Hayes. <a href="http://www.w3.org/TR/ttml10-sdp-us/" property="dc:references"><cite>TTML Simple Delivery Profile for Closed Captions (US)</cite></a>. 5 February 2013. W3C Note. URL: <a href="http://www.w3.org/TR/ttml10-sdp-us/" property="dc:references">http://www.w3.org/TR/ttml10-sdp-us/</a>
+</dd><dt id="bib-xmlschema-1">[xmlschema-1]</dt><dd>Henry Thompson; David Beech; Murray Maloney; Noah Mendelsohn et al. <a href="http://www.w3.org/TR/xmlschema-1/" property="dc:references"><cite>XML Schema Part 1: Structures Second Edition</cite></a>. 28 October 2004. W3C Recommendation. URL: <a href="http://www.w3.org/TR/xmlschema-1/" property="dc:references">http://www.w3.org/TR/xmlschema-1/</a>
 </dd></dl></section></section></body></html>
\ No newline at end of file

--- a/ttml-ww-profiles/ttml-ww-profiles.source.html	Thu Oct 29 10:40:27 2015 +0900
+++ b/ttml-ww-profiles/ttml-ww-profiles.source.html	Thu Oct 29 13:39:23 2015 +0900
@@ -2905,5 +2905,19 @@
       support for values of the <code>ebutts:multiRowAlign</code> attribute specified in [[!EBU-TT-D]].</p>
     </section>
   </section>
+	
+	<section class='appendix' id='xml-schemas'>
+    <h2>XML Schema Definitions (non-normative)</h2>
+		
+		<p>XML Schema definitions (see [[xmlschema-1]]) for extension vocabulary defined 
+		by this specification are provided <a href="./xml-schemas">here</a> for convenience.</p>
+
+		<p>These definitions are non-normative and are not sufficient to validate conformance of a <a>Document Instance</a>.</p>
+				
+		<p>In any case where a definition specified by this appendix diverge from the prose of the specification, 
+		then the latter takes precedence.</p>
+		
+
+	</section>
 </body>
 </html>

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ttml-ww-profiles/xml-schemas/imsc1-metadata.xsd	Thu Oct 29 13:39:23 2015 +0900
@@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="utf-8"?>
+<xs:schema targetNamespace="http://www.w3.org/ns/ttml/profile/imsc1#metadata"
+  xml:lang="en" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:ittm="http://www.w3.org/ns/ttml/profile/imsc1#metadata">
+  <xs:import namespace="http://www.w3.org/XML/1998/namespace"/>
+  <xs:attributeGroup name="altText.attlist">
+    <xs:attribute ref="xml:id"/>
+    <xs:attribute ref="xml:lang"/>
+    <xs:attribute ref="xml:space"/>
+    <xs:anyAttribute namespace="##other" processContents="lax"/>
+  </xs:attributeGroup>
+  <xs:complexType name="altText.eltype" mixed="true">
+    <xs:attributeGroup ref="ittm:altText.attlist"/>
+  </xs:complexType>
+  <xs:element name="altText" type="ittm:altText.eltype"/>
+</xs:schema>

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ttml-ww-profiles/xml-schemas/imsc1-parameters.xsd	Thu Oct 29 13:39:23 2015 +0900
@@ -0,0 +1,24 @@
+<?xml version="1.0" encoding="utf-8"?>
+<xs:schema targetNamespace="http://www.w3.org/ns/ttml/profile/imsc1#parameter" xml:lang="en"
+  xmlns:xs="http://www.w3.org/2001/XMLSchema"
+  xmlns:ittp="http://www.w3.org/ns/ttml/profile/imsc1#parameter">
+  
+  <xs:attribute name="aspectRatio">
+    <xs:simpleType>
+      <xs:restriction>
+        <xs:simpleType>
+          <xs:list>
+            <xs:simpleType>
+              <xs:restriction base="xs:string">
+                <xs:pattern value="[0-9]+"/>
+              </xs:restriction>
+            </xs:simpleType>
+          </xs:list>
+        </xs:simpleType>
+        <xs:length value="2"/>
+      </xs:restriction>
+    </xs:simpleType>
+  </xs:attribute>
+  
+  <xs:attribute name="progressivelyDecodable" type="xs:boolean"/>
+</xs:schema>

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ttml-ww-profiles/xml-schemas/imsc1-styling.xsd	Thu Oct 29 13:39:23 2015 +0900
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="utf-8"?>
+<xs:schema targetNamespace="http://www.w3.org/ns/ttml/profile/imsc1#styling" xml:lang="en"
+  xmlns:xs="http://www.w3.org/2001/XMLSchema"
+  xmlns:itts="http://www.w3.org/ns/ttml/profile/imsc1#styling">
+  
+  <xs:attribute name="forcedDisplay" type="xs:boolean"/>
+  
+</xs:schema>

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ttml-ww-profiles/xml-schemas/imsc1.xsd	Thu Oct 29 13:39:23 2015 +0900
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" elementFormDefault="qualified" attributeFormDefault="qualified" version="2015-10-29">
+  <xs:import namespace="http://www.w3.org/ns/ttml/profile/imsc1#metadata" schemaLocation="imsc1-metadata.xsd"/>
+  <xs:import namespace="http://www.w3.org/ns/ttml/profile/imsc1#parameter" schemaLocation="imsc1-parameters.xsd"/>
+  <xs:import namespace="http://www.w3.org/ns/ttml/profile/imsc1#styling" schemaLocation="imsc1-styling.xsd"/>
+</xs:schema>