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Linearization / plain text view check [previous subject from other thread: Easy Checks - what's not included]

From: Shawn Henry <shawn@w3.org>
Date: Wed, 12 Jun 2013 14:30:34 -0500
Message-ID: <51B8CC5A.9060506@w3.org>
To: Wayne Dick <Wayne.Dick@csulb.edu>, "EOWG (E-mail)" <w3c-wai-eo@w3.org>
Thanks Sharron & Wayne for drafting! I took another edit pass to try to simplify it even more. For example, I'm not sure if people would understand the two and one dimensional presentation.

Draft at: <http://www.w3.org/WAI/EO/Drafts/eval/checks#l>

Questions for EOWG consideration and comment in the wiki at: <http://www.w3.org/WAI/EO/wiki/Easy_Checks#Comments_on_Linearize>


On 6/11/2013 2:31 PM, Wayne Dick wrote:
> I have worked on the linearize the page section, and believe it should
> be included in easy checks.
> Here it is. Please read and comment.  For conversion to alternative
> media, not single property is more important than the ability to
> linearize rationally.  As stated the process is "easy" and the
> interpretation is easy as well. Removing images does two things. 1) it
> reveals text alternatives and 2) it removes the clutter of weird image
> layouts when they are linearized.  This latter feature makes the text
> usable by a beginner.
> Here is the proposed section. Wayne
> Linearize the Page for Experiential Learning (Optional)
> When a page is converted form text to speech, to Braille, or to very
> large print, the author's two dimensional presentation format breaks
> down. Before a page can be converted to an appropriate medium it must
> be reduced to a one dimensional information stream. This process is
> called linearizing the page.
> Not everyone has access to a screen reader, or powerful text
> customization tools required to experience linearized content as it is
> used, but a linearized presentation of content is easy to simulate
> using the tools we have introduced so far. This can give the fully
> sighted reader an understanding of the day to day experience of users
> with blindness or low vision.
> Linearization does not focus on any one success criterion, instead it
> reveals how well a page is organized to support accessibility.
> Example: Read the linearized view of the inaccessible version in the
> BAD Demo. That will be fun, and it reveals a lot of what can go wrong.
> The checks below provide instructions with different browsers for how to:
>   1.   Unclutter the linear view and expose text alternatives by removing images
>   2.   Reveal the reading order by turning off the associated style sheets,
>   3.   Expose navigation support for a one dimensional content format, and
>   4.   Reveal the resulting page display for an approximation of a
> screen reader / customized text experience.
> To linearize with IE WAT
> 1.    Open the page you are checking in the IE browser
> 2.    Using the toolbar, choose Images > Remove Images
> 3.    Next choose CSS > Disable CSS
> Shortcuts in WAT toolbar are: With keyboard press ctrl+alt+shift+s to
> display the options dialog box and uncheck the boxes "Images" and
> "CSS", then select "ok".. {Sylvie, June 6}
> To linearize with FF web developer toolbar
> 1.    Open the page you are checking in the FF browser
> 2.    Using the toolbar, choose Images > Disable Images
> 3.    Next choose CSS > Disable Styles > Disable All Styles
> In the French Web Developer version the keyboard shortcut to hide CSS
> is alt+shift+a, but I am not sure if it is the same in the American
> English one. For disabling images, I only have the French version's
> shortcuts here. {Sylvie, June 6}. This doesn't work in the English
> version {Wayne, June 11}
> What to check for:
> Read through the resulting display and notice the following:
>   1.   Make sure that there is text in place of any meaningful images
> and that the text provides the same information as the original.
> (review alt text section above)
> 2.    Verify that the reading order is logical, complete, and makes sense.
> 3    Make sure that navigation is feasible in a linear format.
> On 6/10/13, Shawn Henry <shawn@w3.org> wrote:
>> EOWG,
>> At the last teleconference, we talked about maybe including a list of some
>> of the things that are *not* covered in Easy Checks. We could put that in
>> the Next Steps section, e.g.:
>> <http://www.w3.org/WAI/EO/Drafts/eval/checks#next>
>> What do we want in that list? Please add to wiki at
>> <http://www.w3.org/WAI/EO/wiki/Easy_Checks#Next_Steps>
>> Thanks!
>> ~Shawn
Received on Wednesday, 12 June 2013 19:30:44 UTC

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