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Subject: A tweak to the Section 4.5
In regards to Section 4.5 "Preservation of MathML accessibility information" We need to change what is now three brief paragraphs, and replace it with only one paragraph below... 1) The existing (problematic) language: --begin-- MathML can be exported to XHTML for use by Firefox or Internet Explorer when used with the (free) MathPlayer plug-in, MathML also interfaces with screen readers to make the math accessible. MathML is supported in HTML by Internet Explorer and in an experimental version of Firefox. But in general, MathML support in HTML is problematic if cross-platform compatibility is required. For example, one industry approach to cross-platform compatibility, which has been use by the object tag in HTML??sentence not clear??. However, Internet Explorer's implementation of object tag does not follow the W3C guidelines and its rendering results are poor, so this approach is discouraged. --end-- 2) Rationale for change: The first sentence should have another comma, to make it clear MathPlayer is only required in IE. Also, to say MathML can be exported *to* XHTML isn't correct terminology. We should keep the XHTML and HTML statements parallel in that regard, and say "MathML is supported..." in both cases. Finally, the object tag reference is not constructive. There was some past proposal to use object tags for XML "islands" in HTML, but that's now been effectively left behind, so there's nothing to gain from mentioning it here. 3) The suggested revised language: --begin-- MathML is supported in XHTML by Firefox, or Internet Explorer when used with the (free) MathPlayer plug-in, which interfaces with screen readers to make the math accessible. MathML is also supported in HTML by Internet Explorer and in an experimental version of Firefox, but due to the lack of universal MathML implementation in all browsers, HTML cross-platform compatibility is difficult to ensure. --end-- This should do it. Steve Noble Director of Accessibility Policy Design Science, Inc. E-mail: SteveN@DesSci.com Phone: (502) 969-3088 http://www.dessci.com/accessibility
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