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[SVGMobile12] QA WG review on your Last Call Document

From: Karl Dubost <karl@w3.org>
Date: Thu, 19 May 2005 14:50:38 -0400
Message-Id: <840AEEC9-3164-49C7-A6ED-7B367CC2AC95@w3.org>
To: www-svg@w3.org

Dear SVG WG,

This is a review of SVG Tiny 1.2
http://www.w3.org/TR/2005/WD-SVGMobile12-20050413/

Thank you for this nice piece of work.


* Architecture of the World Wide Web and Conformance.

[[[
It is believed that this specification is in conformance with the Web  
Architecture [AWWW].
]]] - http://www.w3.org/TR/2005/WD-SVGMobile12-20050413/ 
intro.html#AboutSVG

Comment:
1. There's no link to AWWW
2. It's not possible to be conformant to AWWW (for now)
[[[
This document does not include conformance provisions for these  
reasons: 
]]] - http://www.w3.org/TR/2004/REC-webarch-20041215/#about

Maybe a better wording would be:
     "It is believed
     that this specification is in accordance with the Web Architecture
     principles as described in AWWW"




* Markup of the Specification

Comment:
We would like to notice that the XHTML markup and the layout style  
used for this specification is very clean and nice to read.


* Backwards compatibility

[[[
SVG Tiny 1.2 is a backwards compatible upgrade to SVG Tiny 1.1 .
]]] - http://www.w3.org/TR/2005/WD-SVGMobile12-20050413/ 
intro.html#defining

Comment:
How do you define backwards compatibility? In particular, do you  
address deprecation? obsolete features?
Backwards compatibility affects the various classes of products  
(viewsers/authoring
tools/interpreters...). So it would be very important to define all  
these notions and tied them to each specific class of products.


* Reference to XML for DTD subsets

[[[
Note that in XML, there is no requirement to fetch the external DTD  
subset and so relying on an external subset reduces interoperability.
]]] - http://www.w3.org/TR/2005/WD-SVGMobile12-20050413/ 
intro.html#defining

Comment:
Maybe you might want to give a link to the part of the XML  
specification explaining that. Be careful to give a detailed  
reference: XML 1.0 3rd edition, XML 1.1?


* Example entity.svg

[[[
<svg xmlns="http://www.w3.org/2000/svg">
]]] - http://www.w3.org/TR/2005/WD-SVGMobile12-20050413/examples/ 
entity.svg

Comment:
In the previous example, you define an SVG 1.2 Tiny document as  
something starting with:
     <svg xmlns="http://www.w3.org/2000/svg"
         version="1.2" baseProfile="tiny" 

Is your new example, still an SVG 1.2 Tiny document?


* Space character for Macintosh HFS

[[[
It is recommended that SVG files stored on Macintosh HFS file systems  
be given a file type of "svg" (all lowercase, with a space character  
as the fourth letter).
]]] - http://www.w3.org/TR/2005/WD-SVGMobile12-20050413/ 
intro.html#mimetype

Comment:
It might be maybe a bit too much, but does it matter to know which  
space character, for example giving the Unicode reference of the  
space character?


* Reference from CSS2

[[[
Examples include the 'background-image' and 'list-style-image'  
properties that are included in both CSS and XSL.
]]] - http://www.w3.org/TR/2005/WD-SVGMobile12-20050413/concepts.html

Comment:
Does it mean that a "background-image:" in an XHTML document calling  
an SVG file must be rendered? I know that CSS2 doesn't define the  
format of images, but I'm not sure if SVG can impose a behaviour of  
CSS2. Though it seems you define that an XHTML/CSS viewer can also be  
an SVG viewer if it gives this possibility.



* SVG inclusion of different versions.

Comment:
What should be the behaviour of a User Agent when for example an SVG  
1.2 document calls an SVG 1.0 document?


* Discard elements
http://www.w3.org/TR/2005/WD-SVGMobile12-20050413/ 
struct.html#DiscardElement

Comment: SVG 1.2 Tiny gives the possibility to discard parts of the  
SVG animation. I can see the benefits of it. I was wondering what's  
happening when someone links to a discarded part from outside. Does  
the discard mechanism break the URI-references?


* Typo Instanced?
[[[
Any 'g' or graphics element is potentially a template object that can  
be re-used (i.e. "instanced") in the SVG document via a 'use' element.
]]] - http://www.w3.org/TR/2005/WD-SVGMobile12-20050413/ 
struct.html#UseElement

Comment: In my dictionary "to instance" is equivalent to to cite


* Media Type for image
[[[type = "<media/type>"
A hint about the expected Internet Media Type of the raster image.  
Implementations may choose not to fetch images of formats that they  
do not support.
]]] - http://www.w3.org/TR/2005/WD-SVGMobile12-20050413/ 
struct.html#ImageElement

Comment: That's good you said it was a hint. It might be good to  
remind people that HTTP headers have always priority.  An SVG viewer  
MUST NOT ignore the HTTP headers when given.


* Common attributes - Typo?
[[[
class = list
]]] - http://www.w3.org/TR/2005/WD-SVGMobile12-20050413/ 
struct.html#Core.attrib

Given without double quotes, when the others have quotes.



* Styling Properties
[[[
SVG shares many of its styling properties with CSS [CSS2] and XSL [XSL].
]]] - http://www.w3.org/TR/2005/WD-SVGMobile12-20050413/ 
styling.html#SVGStylingProperties

Comment: s/CSS [CSS2]/CSS 2.0 [CSS2]/
     what will happen when CSS 2.1 is coming out? It seems the CSS  
2.1 Spec is intended to replace the CSS 2.0 specification. Does that  
mean that the implemeners MUST stick to CSS 2.0
Same kind of comment for XSL. Precise the version.

***General*** Through your whole document, give precise references to  
the technology. Generic names as HTTP, XSL, CSS, etc. are misleading  
for the implementers who might understand one particular version of  
the technology which is the one you had in mind. One of the most  
common mistakes is XML reference. which version? XML 1.0, XML 1.0 3rd  
edition, XML 1.1.


* Coordinate System Transformation:
http://www.w3.org/TR/2005/WD-SVGMobile12-20050413/ 
coords.html#EstablishingANewUserSpace

Comment: Illustrations of matrix transformation. WAI people might  
argue that the images are not accessible, maybe a link to a mathml  
file with the equation might be useful.


* Events zoom authoring tool?
http://w3c.test.site/TR/2005/WD-SVGMobile12-20050413/interact.html

SVG 1.1 "SVGZoom"

SVG 1.2 {"http://www.w3.org/2001/xml-events", "SVGZoom"}
SVG 1.2 {"http://www.w3.org/2001/xml-events", "zoom"}

Comment: What an authoring tool should do when loading an SVG 1.1  
document and saving it as an SVG 1.2 document? Convert SVGZoom to zoom?


* Implementation Requirements
http://www.w3.org/TR/2005/WD-SVGMobile12-20050413/implnote.html

Comment: You might want to precise what are the classes of products  
you address in this section.
User Agents, bots, authoring tools, etc.

C.3.1 Example

Comment: Where is the example?

D.1 Introduction
Comment: Typo "Software that writes SVG (including authoring tools  
and severs)"  -> Servers

E. QA ICS
http://www.w3.org/TR/2005/WD-SVGMobile12-20050413/qa-ics.html

Comment: The QA WG is very grateful to see the inclusion of the ICS  
in your specification. Without knowing it, you have used an  
incomplete version of the ICS, which has been republished since.  We  
took the freedom to create a new ICS for SVG Tiny 1.2, you will find  
it at
     http://www.w3.org/QA/WG/2005/05/svg-tiny-12-qa-ics
Feel free to use it and adapt it to your needs.



L. Media Type registration
http://www.w3.org/TR/2005/WD-SVGMobile12-20050413/mimereg.html

[[[
Person & email address to contact for further information:
Dean Jackson, (dean@w3.org).
]]]

Comment: In the tradition of IETF, having the address of someone  
seems the way to go for registering media-type, but I was wondering  
if a more generic address would be better even if redirected for the  
time being to Dean's email.  Something like "svg-contact at w3.org"

-- 
Karl Dubost - http://www.w3.org/People/karl/
W3C Conformance Manager
*** Be Strict To Be Cool ***
Received on Thursday, 19 May 2005 19:18:12 GMT

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