ACTION-849 - Reword layers of guidance principles bullet point to include better explanation

ACTION-849 - Reword layers of guidance principles bullet point to 
include better explanation

I tightened up the whole layers of guidance section to give the reader a 
better mental map of the whole thing. I also changed the parentheticals 
after the levels to better explain them. Lower versus higher can be 
ambiguous.

Cheers,
Kim

PROPOSED REWORDING


UAAG 2.0 Layers of Guidance

UAAG provides three layers of guidance: overall principles, general 
guidelines, and testable success criteria. Each success criterion also 
contains explanatory intent, examplesand resourcessections.

 1.

    Principles-- Five principles provide a foundation for accessible
    user agents. Principles 1, 2, and 3 ensure that the user agent is
    perceivable, so users can access user agent output; operable, so
    users can communicate with the user agent; andunderstandable, so
    users know what to do to use the user agent. Principle 4 ensures
    that developers haveprogrammatic accessto user agent controls.
    Principle 5 ensures that user agents comply with
    existingspecifications and conventions.

 2.

    Guidelines-- Under each principal is a set of guidelines for making
    user agents more accessible to users with disabilities. These
    guidelines provide a framework to help authors understand the
    objectives for success criteria so they can better implement them.

 3.

    Success Criteria-- Under each guideline is a set of testable success
    criteria that can be used wherever conformance testing is necessary,
    including design specification, purchasing, regulation, and
    contractual agreements. Three levels of conformance meet the needs
    of different groups and different situations: A (basic compliance),
    AA (stronger compliance), and AAA (strongest compliance). Additional
    information on UAAG levels can be found in theConformance
    <http://www.w3.org/WAI/UA/2013/ED-UAAG20-20130628/#conformance>section.
    Even user agents that conform at the strongest level (AAA) may not
    be accessible to individuals with all types, degrees, or
    combinations of disability. Each success criterion also contains an
    explanatory intent section, examples of how the criterion may apply
    in different user situations, and links to resources.

ORIGINAL


      UAAG 2.0 Layers of Guidance

In order to meet the needs of different audiences using UAAG, several 
layers of guidance are provided, including overall principles, general 
guidelines, testable success criteria, and explanatory intent, 
examplesand resourcelinks.

  *

    Principles-- At the top are five principles that provide the
    foundation for accessible user agents. Principles 1, 2, and 3
    parallel the Web Content Accessibility Guidelines (WCAG) 2.0: to
    make the user agent perceivable, operable, andunderstandable.
    Principles 4 and 5 are specific to user agents:
    facilitateprogrammatic accessand comply withspecifications and
    conventions.

  *

    Guidelines-- Under the principles are guidelines. The guidelines are
    goals authors should work toward in order to make user agents more
    accessible to users with disabilities. The guidelines provide the
    framework and overall objectives to help authors understand the
    success criteria and better implement them.

  *

    Success Criteria-- For each guideline, at least one success
    criterion is provided. Each success criterion is testable, allowing
    UAAG 2.0 to be used where conformance testing is necessary, such as
    design specification, purchasing, regulation, and contractual
    agreements. Three levels of conformance meet the needs of different
    groups and different situations: A (lowest), AA, and AAA (highest).
    Additional information on UAAG levels can be found in theConformance
    <http://www.w3.org/WAI/UA/2013/ED-UAAG20-20130628/#conformance>section.

The principles, guidelines, and success criteria provide guidance on how 
to make user agents more accessible. Developers are encouraged to use 
them to best address the needs of the widest possible range of users.

Even user agents that conform at the highest level (AAA) may not be 
accessible to individuals with all types, degrees, or combinations of 
disability.


-- 
___________________________________________________

Kimberly Patch
President
Redstart Systems, Inc.
(617) 325-3966
kim@redstartsystems.com

www.redstartsystems.com <http://www.redstartsystems.com>
- making speech fly

Blog: Patch on Speech
+Kim Patch
Twitter: RedstartSystems
www.linkedin.com/in/kimpatch <http://www.linkedin.com/in/kimpatch>
___________________________________________________