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Re: 6.5 Frames and dynamic content

From: Ian Jacobs <ij@w3.org>
Date: Fri, 30 Apr 1999 11:06:10 -0400
Message-ID: <3729C6E2.1A1F1A2F@w3.org>
To: Wendy A Chisholm <chisholm@trace.wisc.edu>
CC: pjenkins@us.ibm.com, w3c-wai-gl@w3.org
Wendy A Chisholm wrote:
> Phil,
> I agree that there is some redundancy.  I raised a similar issue a couple
> weeks ago.
> The original intention of this checkpoint was to warn authors about the
> perils of using images as targets of frames because there is no way to
> attach alt-text to the image.  However, that is more of a technique, so we
> tried to generalize it a bit: "Ensure that the source of each frame is a
> markup file, such as HTML." To make it less HTML-centric frames were
> generalized into "dynamic content" since the contents of the frame often
> change.
> I agree that frames could be covered under 6.3.  A proposed rewording could
> be as follows.  Note that the example is also different not only to reflect
> frames, but to also incorporate discussion from the 4/15 call.

> 6.3 Ensure that pages are usable when scripts, applets, or other dynamic
> objects are turned off or not supported. If this is not possible, provide
> equivalent information either on an alternative accessible page or within
> the content of the element.

This change has not been made. SHould it?

 - Ian

> A few examples:
> * An example of an alternative mechanism for an applet simulation is a
> video recording of someone interacting with the applet simulation.
> * In HTML, use a NOFRAMES element within a FRAMESET.
> * When using JavaScript in an HTML document, do not use "javascript:" as
> the URI for a link. If it is not possible to make the page usable without
> scripts, provide a text equivalent with the NOSCRIPT element, use a
> server-side script instead of client-side script, or provide an alternative
> accessible page.
> Refer also to guideline 1.
> --wendy
> At 12:26 PM 4/21/99 , Phil wrote:
> >
> >
> >I'm not sure this has been covered in some of the proposed changes.
> >
> >6.5 Frames.
> >"6.5 Provide an alternative presentation or page when the primary content
> >is dynamic (e.g., when frame contents change, when scripts cause changes,
> >etc.). "
> >
> >The intent of this checkpoint is not clear as stated and seems to repeat
> >6.3  In particular, this is in the Frames section of the checklist, yet the
> >reference is to dynamic content.  If it is specific to frames (not scripts)
> >that change the content of the target frame, then it may not be an "issue"
> >for browsers and assistive technologies that support frames, any more than
> >selecting a link and loading the new page.  If the issue is related to
> >browsers and assistive technologies that do not support frames, then is
> >could be solved by adding "frames" to 6.3 to provide alternative accessible
> >page when frames are not supported, or - removing the phrase "scripts cause
> >changes" from checkpoint 6.5 because it's covered in 6.3.
> >
> >
> >Regards,
> >Phill Jenkins     (678-4517 tieline)  1-512-838-4517
> >Accessibility Program Manager
> >IBM Special Needs  Fax:  1-512-838-9367
> >11501 Burnet Rd    pjenkins@us.ibm.com
> >Austin TX 78758    http://www.ibm.com/sns
> >

Ian Jacobs (jacobs@w3.org) 
Tel/Fax: (212) 684-1814 
Received on Friday, 30 April 1999 11:05:27 UTC

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