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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
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<title>SVGT 1.2 Requirements</title>
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<p> <a href="http://www.w3.org/"> <img height="48" width="72"
alt="W3C" src="http://www.w3.org/Icons/w3c_home"/> </a> </p>
<h1>SVGT 1.2 Requirements</h1>
<h2>W3C Working Draft 10 August 2006</h2>
<dl>
<dt>This version:</dt>
<dd> <a href="http://www.w3.org/TR/2006/WD-SVGTiny12Reqs-20060810/">http://www.w3.org/TR/2006/WD-SVGTiny12Reqs-20060810/</a>
</dd>
<dt>Latest version:</dt>
<dd> <a href="http://www.w3.org/TR/SVGTiny12Reqs">http://www.w3.org/TR/SVGTiny12Reqs</a>
</dd>
<dt>Previous version:</dt>
<dd>
<a href="http://www.w3.org/TR/2003/WD-SVGTiny12Reqs-20031209/">http://www.w3.org/TR/2003/WD-SVGTiny12Reqs-20031209/</a>
</dd>
<dt>Editor:</dt>
<dd>Andrew Emmons, BitFlash; &lt;<a href="mailto:aemmons@bitflash.com">aemmons@bitflash.com</a>&gt;</dd>
</dl>
<p class="copyright"><a href="http://www.w3.org/Consortium/Legal/ipr-notice#Copyright">Copyright</a> © 2006 <a href="http://www.w3.org/"><acronym title="World Wide Web Consortium">W3C</acronym></a><sup>®</sup> (<a href="http://www.csail.mit.edu/"><acronym title="Massachusetts Institute of Technology">MIT</acronym></a>, <a href="http://www.ercim.org/"><acronym title="European Research Consortium for Informatics and Mathematics">ERCIM</acronym></a>, <a href="http://www.keio.ac.jp/">Keio</a>), All Rights Reserved. W3C <a href="http://www.w3.org/Consortium/Legal/ipr-notice#Legal_Disclaimer">liability</a>, <a href="http://www.w3.org/Consortium/Legal/ipr-notice#W3C_Trademarks">trademark</a> and <a href="http://www.w3.org/Consortium/Legal/copyright-documents">document use</a> rules apply.</p>
<hr class="xhtml"/> </div>
<h2> <a id="abstract" name="abstract">Abstract</a> </h2>
<p>This document specifies requirements for SVG Tiny 1.2, a
backwardly-compatible update of SVG Tiny 1.1 which adds some new
features from SVG 1.2 add adds other features based on implementor and
designer feedback on SVG Tiny 1.1.</p>
<h2> <a id="status" name="status">Status of this document</a> </h2>
<p> <em>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 <a href="http://www.w3.org/TR/">W3C
technical reports index</a> at http://www.w3.org/TR/.</em> </p>
<p class="novel">
This document is the second public working draft of the SVG Tiny 1.2
requirements. It compares how the SVG Tiny 1.2 Candidate Recommendation
met the requirements listed in the first draft of the requirements, and
in one case softens a requirement that could not be met.
The requirements are grouped into those derived from use
cases for SVG Tiny, then General, Architectural, and Functional
requirements.</p>
<p>
This document has been produced by the <a
href="http://www.w3.org/Graphics/SVG/">W3C SVG Working Group</a> as
part of the W3C <a href="http://www.w3.org/Graphics/Activity">Graphics
Activity</a> within the <a href="http://www.w3.org/Interaction/">Interaction
Domain</a>. </p>
<p>
We explicitly invite comments on this specification. Please send them
to <a href="mailto:www-svg@w3.org">www-svg@w3.org</a>: the public
email list for issues related to vector graphics on the Web. This list
is <a href="http://lists.w3.org/Archives/Public/www-svg/">archived</a>
and acceptance of this archiving policy is requested automatically upon
first post. To subscribe to this list send an email to <a
href="mailto:www-svg-request@w3.org">www-svg-request@w3.org</a> with
the word subscribe in the subject line. </p>
<p>
The latest information regarding <a
href="http://www.w3.org/Graphics/SVG/Disclosures">patent disclosures</a>
related to this document is available on the Web. As of this
publication, the SVG Working Group are not aware of any royalty-bearing
patents they believe to be essential to SVG. </p>
<p>This document was produced by a group operating under the <a href="http://www.w3.org/Consortium/Patent-Policy-20040205/">5 February 2004 W3C Patent Policy</a>. The group does not expect this document to become a W3C Recommendation. W3C maintains a <a rel="disclosure" href="http://www.w3.org/2004/01/pp-impl/19480/status">public list of any patent disclosures</a> 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 <a href="http://www.w3.org/Consortium/Patent-Policy-20040205/#def-essential">Essential Claim(s)</a> must disclose the information in accordance with <a href="http://www.w3.org/Consortium/Patent-Policy-20040205/#sec-Disclosure">section 6 of the W3C Patent Policy</a>. </p>
<p>
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. </p>
<!--h2>
<a id="contents" name="contents">Table of contents</a>
</h2-->
<hr class="xhtml"/>
<div class="main">
<div class="Section1">
<h2 id="intro">Introduction</h2>
<p>This document uses the following definitions:</p>
<ul class="disc">
<li><b>Must: </b>there is a consensus that the feature
is essential </li>
<li><b>Should: </b>there is a consensus that the feature is good to
have but may not be essential </li>
</ul>
<h1 id="usecases">1.&#xA0;Use Cases</h1>
<p>USE 1.&#xA0;&#xA0;SVGT 1.2 <b>must</b> support progressively
downloadable long cartoon animations.<!--(OK)--> </p>
<p class="note">Supported</p>
<p>USE 2.&#xA0;&#xA0;SVGT 1.2 <b>must</b> support controllable
progressive rendering of large static content.<!--(OK)--> </p>
<p class="note">Supported</p>
<p>USE 3.&#xA0;&#xA0;SVGT 1.2 <b>must </b>support scalable,
interactive maps.<!--(OK)--></p>
<p class="note">Supported</p>
<p>USE 4.&#xA0;&#xA0;SVGT 1.2 <b>must </b>support scalable, animated
icons.<!--(OK)--> </p>
<p class="note">Supported</p>
<p>USE 5.&#xA0;&#xA0;SVGT 1.2 <b>must </b>support multimedia content.
<!--(OK)--></p>
<p class="note">Supported</p>
<p>USE 6.&#xA0;&#xA0;SVGT 1.2 <b>must </b>support the ability to
create visually compelling content.<!--(OK)--> </p>
<p class="note">Supported</p>
<p>USE 7.&#xA0;&#xA0;SVGT 1.2 <b>should </b>allow specification of a
thumbnail of an SVG document.<!--(OK)--> </p>
<p class="note">Supported</p>
<p>USE 8.&#xA0;&#xA0;SVGT 1.2 <b>must</b> support game development.
<!--(OK)--></p>
<p class="note">Supported</p>
<p>USE 9.&#xA0;&#xA0;SVGT 1.2 <span style="font-weight: bold;">must</span>
support simple user interfaces.<!--(OK)--> </p>
<p class="note">Supported</p>
<h1 id="general">2.&#xA0;General</h1>
<p>GEN 1.&#xA0;&#xA0;Two profiles are defined: <i>SVG Tiny 1.2 ? Image</i>,and <i>SVG Tiny 1.2 ? Application</i>. The profiles <b><del>must not</del><ins>should not</ins> </b>contain
optional parts (i.e. all features must be implemented by all vendors) in order to claim compliance with a profile. <!--(OK)--></p>
<p class="note">Changed. The Working Group tried to avoid optional parts, but was not able to do this in all cases. SVG Tiny 1.2 has a small number of optional parts.
On the other hand, because of the uDOM, the number of mobile-friendly profiles could be reduced from two (in SVG 1.1) to one (in SVG 1.2).</p>
<p>GEN 2.&#xA0;&#xA0;<span>SVGT 1.2 <strong>should</strong> clarify
authoring guidelines for feature costs to content developers<!--(OK)--> </span></p>
<p class="note">Partly supported. The SVG Tiny 1.2 specification has a small amount of authoring guidance; a more comprehensive separate authoring guidelines document is planned.</p>
<p>GEN 3.&#xA0;&#xA0;<span>SVGT 1.2 <b>must</b> develop at least 80
detailed conformance tests.<!--(OK)--> </span></p>
<p class="note">(This criterion applies to the CR period, and is expected to be met during that time)</p>
<h1 id="architecture">3.&#xA0;Architecture</h1>
<p>ARCH 1.&#xA0;<span>&#xA0;</span>SVGT 1.2 <b>must</b> support a
minimal API to control SVG content/animations compatible with other
user agents, for the SVG Tiny Application profile.<!--(OK)--> </p>
<p class="note">Supported by the <a href="http://www.w3.org/TR/SVGMobile12/svgudom.html">SVG Micro DOM (uDOM).</a></p>
<p>ARCH 2.&#xA0;<span>&#xA0;</span>SVGT 1.2 <b>must </b>support
starting and stopping an audio clip.<!--(OK)--> </p>
<p class="note">Supported by the <a href="http://www.w3.org/TR/SVGMobile12/multimedia.html#AudioElement">audio</a> element.</p>
<p></p>
<p>ARCH 3.&#xA0;<span>&#xA0;</span>SVGT 1.2 <b>must </b>support
switching between different audio formats<!--(OK)--> </p>
<p class="note">Supported by the <a href="http://www.w3.org/TR/SVGMobile12/multimedia.html#AudioElement">audio</a> element.</p>
<h1 id="functional">4.&#xA0;Functional</h1>
<h2 id="fun-rendering">4.1&#xA0;Rendering</h2>
<p>FUN 1. &#xA0;SVGT 1.2 <b>should </b>provide ability to provide
hints to guide quality vs. speed for rendering text, shapes, and images
(use case 1,2,3).<!--(OK)--> </p>
<p class="note">Supported by the <a href="http://www.w3.org/TR/SVGMobile12/painting.html#RenderingProperties">rendering hint</a> attributes.</p>
<p>FUN 2. &#xA0;SVGT 1.2 <b>should </b>support non-scaling objects
(use case 3).<!--(OK)--> </p>
<p class="note">Supported by <a href="http://www.w3.org/TR/SVGMobile12/coords.html#ConstrainedTransformations">constrained transforms</a>.</p>
<p>FUN 3. &#xA0;SVGT 1.2 <b>must </b>support non-scaling
stroke&#xA0;(use case 3).<!--(OK)--> </p>
<p class="note">Supported by the <a href="http://www.w3.org/TR/SVGMobile12/painting.html#NonScalingStroke">non-scaling-stroke</a> value of the vector-effect attribute.</p>
<h2 id="fun-structure">4.2&#xA0;Document Structure</h2>
<p>FUN 4. &#xA0;SVGT 1.2 <b>should </b>support SVG content organized
in pages (use case 1).<!--(OK)--> </p>
<p class="note">Unsupported. This functionality was explored and found to be unsuitable; pages (on the one hand) and timed scenes (on the other) are better represented using different constructs.</p>
<p>FUN 5. &#xA0;SVGT 1.2 <b>should</b> support rendering level of
detail (use case 3).<!--(OK)--> </p>
<p class="note">Supported by <a href="http://www.w3.org/TR/SVGMobile12/svgudom.html#svg__SVGGlobal">SVGGlobal.getURL</a>,
<a href="http://www.w3.org/TR/SVGMobile12/svgudom.html#svg__SVGGlobal">SVGGlobal.parseXML</a> and the <a href="http://www.w3.org/TR/SVGMobile12/svgudom.html#global__Connection">
connection interface</a>. More detail can be fetched over a network on demand.</p>
<p>FUN 6. &#xA0;SVGT 1.2 <b>should </b>support keyboard navigation -
the specification of the navigation in a scene using keys.<!--(OK)--> </p>
<p class="note">Supported by <a href="http://www.w3.org/TR/SVGMobile12/interact.html#navigation">Section 13.12 - Navigation</a>.</p>
<h2 id="fun-opacity">4.3&#xA0;Opacity</h2>
<p>FUN 7. &#xA0;<span>SVGT 1.2 <strong>must </strong>support fill
opacity.<!--(OK)--> </span></p>
<p class="note">Supportedby the <a href="http://www.w3.org/TR/SVGMobile12/painting.html#FillProperties">fill-opacity</a> attribute.</p>
<p>FUN 8. &#xA0;SVGT 1.2 <b>must </b>support stroke opacity.<!--(OK)--> </p>
<p class="note">Supported by the <a href="http://www.w3.org/TR/SVGMobile12/painting.html#StrokeProperties">stroke-opacity</a> attribute.</p>
<h2 id="fun-gradients">4.4&#xA0;Gradients</h2>
<p>FUN 9. &#xA0;SVGT 1.2 <b>must </b>support subset of linear
gradients (use case 1-5).<!--(OK)--> </p>
<p class="note">Supported by the <a href="http://www.w3.org/TR/SVGMobile12/painting.html#LinearGradientElement">linearGradient</a> element.</p>
<p>FUN 10. &#xA0;SVGT 1.2 <b>should </b>support subset of radial
gradients. (use case 1-4).<!--(OK)--> </p>
<p class="note">Supported by the <a href="http://www.w3.org/TR/SVGMobile12/painting.html#RadialGradientElement">radialGradient</a> element.</p>
<h2 id="fun-text">4.5&#xA0;Text</h2>
<p>FUN 11. &#xA0;<span>SVGT 1.2 <b>should </b>support minimal text
layout</span></p>
<p class="note">Supported by the <a href="http://www.w3.org/TR/SVGMobile12/text.html#TextInAnArea">textArea</a> element.</p>
<p><span>FUN 17.&#xA0; SVGT 1.2 <span style="font-weight: bold;">should</span>
support tspan<!--(OK)--> </span></p>
<p class="note">Supported by the <a href="http://www.w3.org/TR/SVGMobile12/text.html#TSpanElement">tspan</a> element.</p>
<h2 id="fun-animation">4.6&#xA0;Animation</h2>
<p>FUN 12. &#xA0;SVGT 1.2 <b>should </b>allow specification of a
certain point in time for static rendering of an animation (e.g. for
thumbnails) (use case 7).<!--(OK)--> </p>
<p class="note">Supported by the <a href="http://www.w3.org/TR/SVGMobile12/struct.html#SVGElement">snapshotTime</a> attribute of the svg element.</p>
<p>FUN 13. &#xA0;SVGT 1.2 <b>should</b> allow specification of a
thumbnail of an SVG document (use case 7).<!--(OK)-->
</p>
<p class="note">Supported by the <a href="http://www.w3.org/TR/SVGMobile12/struct.html#SVGElement">snapshotTime</a> attribute of the svg element. The size and format of the snapshot is not constrained by the SVG Tiny 1.2 specification.</p>
<p>FUN 14. &#xA0;SVGT 1.2 <b>should</b> support
raster sprite animation.</p>
<p class="note">Supported by the <a href="http://www.w3.org/TR/SVGMobile12/animate.html">Section 16 - Animation</a></p>
<h2 id="fun-interactivity">4.7&#xA0;Interactivity</h2>
<p>FUN 15. &#xA0;SVGT 1.2 <b>must</b> support interactivity (GEN.2).
<!--(OK)--></p>
<p class="note">Supported by <a href="http://www.w3.org/TR/SVGMobile12/interact.html">Section 13 - Interactivity</a>.</p>
<h2 id="fun-scripting">4.8&#xA0;Scripting</h2>
<p>FUN 16. &#xA0;SVGT 1.2 Application <b>must </b>support scripting
(DSM or DOM subset).</p>
<p class="note">Supported by <a href="http://www.w3.org/TR/SVGMobile12/script.html">Section 15 - Scripting</a>.</p>
<h2 id="cstu">4.9 Coordinate Systems, Transformations and Units
</h2>
<p>&#xA0;FUN 18.&#xA0; SVGT 1.2 <span style="font-weight: bold;">should</span>
support all align values for preserveAspectRatio attribute on image
elements&#xA0;<!--(OK)--> </p>
<p class="note">Supported by the <a href="http://www.w3.org/TR/SVGMobile12/coords.html#PreserveAspectRatioAttribute">preserveAspectRatio</a> attribute.</p>
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