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Action 501 - Guideline 2.8 Reformulation

From: Simon Harper <simon.harper@manchester.ac.uk>
Date: Wed, 09 Mar 2011 14:34:04 +0000
Message-ID: <4D778FDC.4040107@manchester.ac.uk>
To: uawg list <w3c-wai-ua@w3.org>
Action 501 SC / Intent Reformulation

 From Minutes: http://lists.w3.org/Archives/Public/w3c-wai-ua/2011JanMar/0076.html
Links to: http://lists.w3.org/Archives/Public/w3c-wai-ua/2011JanMar/0073.html
Modified Taking into Account: http://www.w3.org/2002/09/wbs/36791/20110301/results

Guideline 2.8 (former 4.8) Provide toolbar configuration.

2.8.1 (former 4.8.1) Configure Position:
When graphical user agent user interfaces have toolbars, panels, inspectors, or similar,
the user can add, remove and configure the position of user agent user interface
controls from a pre-defined set. (Level AAA)


* Intent of Success Criterion 2.8.1 (former 4.8.1) :
Users with dexterity impairments or mobility impairments may have
problems making the large movements required to select between
non-adjacent controls which they need to use frequently.
Similarly users with low vision may have to excessively
move their magnified view-port to see frequently used controls.
Enabling these controls to be situated together removes much of the
strain faced by these users, and increases productivity as
task completion times are decreased.


* Examples of Success Criterion 2.8.1 (former 4.8.1) :
As part of her work as a legal secretary, Jane always needs to justify
paragraphs, place them in a numbered list, and bold the first word of
each list item. Because the document processor she uses does not
allow toolbars to be modified, and groups controls logically together -
all paragraph formatting is grouped together, as are list manipulation
and character highlighting - Jane experiences increased pain from her
repetitive strain injury forcing her to take many more breaks. If the
word processor allowed toolbar modification Jane could group 'justify'
next to 'numbered list' next to 'bold' creating less requirement for
movement and therefore less strain. Further, Jane's colleague Mary
has no problems with her hands, but because of her vision problems,
it takes longer for her to focus on a given part of the screen.
Grouping justify, numbered list and bold together allows Jane to
avoid excess reorienting and keep up with her colleagues.

* Related Resources for Success Criterion 2.8.1 (former 4.8.1) :


====


2.8.2 (former 4.8.2) Restore Default Toolbars:
The user can restore the default toolbar, panel, inspector, configuration. (Level AAA)

* Intent of Success Criterion 2.8.2 (former 4.8.2) :
Mistakes happen. If a user has modified the toolbar incorrectly it can
often be difficult to return to a stable state so that these errors can
be corrected. There are additional pressures in this regard for people
with learning difficulties who make more use of toolbars than they do of
textual menus. Building an easily selectable mechanism to restore these
defaults saves user time and reduces stress.

* Examples of Success Criterion 2.8.2 (former 4.8.2) :
Jack, is an 80 year old web surfer who is intellectually very sharp
but experiences tremors in his hands when required to make fine
movements with the mouse. To help himself he is setting up the toolbar
so that 'spacers' are placed between each component to prevent
accidental selection of adjacent buttons. Today his tremors are
particulaly bad and Jack makes a number of mistakes becoming
increasingly frustrated that while trying to correct these errors he
begins to make many more. Jack just wants to start over. Luckily the
Browser manufacturer has included an easy mechanism to restore the
default toolbar configuration. Jack chooses this option and successfully
starts over the next day.


* Related Resources for Success Criterion 2.8.2 (former 4.8.2) :



Cheers

Si.

=======================
Simon Harper
University of Manchester (UK)

More: http://simon.harper.name/about/card/
Received on Wednesday, 9 March 2011 14:34:34 GMT

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