Re: [office-accessibility] can't find draw:describedBy in the spec

[Richard Schwerdtfeger <schwer@us.ibm.com>]

Pete,

draw:caption-id replaced draw:describedby in the final 1.1 spec.


Rich Schwerdtfeger
Distinguished Engineer, SWG Accessibility Architect/Strategist
Chair, IBM Accessibility Architecture Review Board
blog: http://www.ibm.com/developerworks/blogs/page/schwer
Pete Brunet/Austin/IBM@IBMUS

Pete Brunet/Austin/IBM@IBMUS

03/24/2007 11:48 PM

To	office-accessibility@lists.oasis-open.org
cc
Subject	[office-accessibility] can't find draw:describedBy in the spec

In our recommendation doc we specified the addition of draw:describedby in these two items
6.0 Requirement: Alternative text for drawing objects (line 5926 of spec.)
7.0 Requirement: Establish clear relationships between objects and their captions

I can't find draw:describedby in the 1.1 spec. Is it there and I can't find it - or did it not make it into the spec?

From recommendation 6:

If an <svg:title> element is provided it should map to the accessible name. If not, the name should use the text referenced the text element identified by the draw:describedby attribute.

From various parts of recommendation 7:

Establish clear relationship between a drawing objects and its caption by including a new optional draw:describedby attribute to the following drawing objects.

draw:describedby shall take a value of IDREF. The value for draw:describedby attribute shall be the target id assigned to the <text:p> used to represent the corresponding caption.

When a caption is assigned by a user agent, an id must be assigned to the element containing the text used to caption a drawing element. The drawing element being captioned must then be assigned the draw:describedby attribute with an IDREF equivalent to the id of the captioning text thus establishing a relationship between the captioned text and the object captioned as needed for accessibility. Removing the caption should result in removing the draw:describedby attribute of the object that was being captioned.

If the user agent supports a platform which provides a draw:describedby relationship in its accessibility API, this relationship for captions should be used to fulfill the relationship.

Pete Brunet

IBM Accessibility Architecture and Development
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