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Harmonizing WCAG Conformity Assessment
               Method

              Session WEB-036
                 CSUN 2012
Harmonizing WCAG Conformity Assessment Method

                               Authors

• Dominique Burger : BrailleNet association, president
Contact : dominique.burger@upmc.fr

• Jean-Pierre Villain : Qelios company, technical director
Contact : jpvillain@yahoo.fr

• Denis Boulay (speaker) : BrailleNet association, AccessiWeb
  director
Contact : denis.boulay@accessiweb.org
Harmonizing WCAG Conformity Assessment Method

              We are from here
Harmonizing WCAG Conformity Assessment Method

                Content of the session

• Presentation of the WCAG CAC (Conformity Assessment
  Cohenrence) project

• Description of a list’s management tool

• Demonstration of the tool prototype
Harmonizing WCAG Conformity Assessment Method

    WCAG 2.0 is the universal reference for Web Accessibility


•     Europe : Communication "Towards an accessible
      information society" (1.12.2008)

• France : Law on the rights of people with disabilities – Article 47 :
  accessibility of public online services (11.02.2005)
  Creation of an e-accessibility checklist (RGAA) based on WCAG 2.0
  (23.10.2009)
Harmonizing WCAG Conformity Assessment Method

     Demand for independent conformity assessment

Third Party Certification

•   Quality Marks :
      • Assessment methods
      • Checklist
      • Single tests
•   Certification Process
Harmonizing WCAG Conformity Assessment Method

                Several schemes have emerged

•   Belgium
•   France
•   Italy
•   Spain
•   UK

All refering to WCAG2.0 !
It works locally in different countries
Harmonizing WCAG Conformity Assessment Method

                       Practical questions

•   Do they really cover 100% WCAG2.0 ?
•   Do they provide additional information ?
•   What correspondences between them ?
•   Do they tell the same story about Web sites ?
•   Is it possible to certify in one country using a scheme
    developed in another ?
Harmonizing WCAG Conformity Assessment Method

    WCAG Conformity Assessment Coherence - Phase 1


•   Sample pages (32) covering all WCAG AA
•   Evaluation by experts according their checklists
•   Comparison of the results
•   Descriptive Questionnaire to learn more about
    each checklist and assessment methods
Harmonizing WCAG Conformity Assessment Method

    WCAG Conformity Assessment Coherence - Phase 2

Development of a tool :

•   Model of Data
•   Proof of concept
Harmonizing WCAG Conformity Assessment Method

           The project has two main objectives
               Analyse                                 Use



1. Provide analysis tools to assure   1. Provide tools for the expert in
   the relation between :                order to :

    1. a checklist to WCAG                1. adapt a checklist to a web
    2. a checklist to another                project
       checklist                          2. use several checklists for a
    3. several checklists to WCAG            same web project
    4. several checklists to one          3. Facilitate maintenance and
       checklist                             update of checklists
Harmonizing WCAG Conformity Assessment Method

                            WCAG CAC project
  Objective : provide a common recognition scheme based on multiple checklists

UWEM (Unified Web Evaluation Methodology)                    Solution

         Common checklist                                Allow to :

                                              1. Choose a working checklist (eg. AW)
    Lowest common denominator                 2. Choose targeted checklists


  Not adapted to checklists, practices
        and tools used locally                 Obtain a version of your working
                                               checklist adapted to the constraints
                                               and requirements of all targeted
                                               checklists
              Rarely used
Harmonizing WCAG Conformity Assessment Method

The expert, his working checklist and a web project
                   Objective : work only on what is useful

               Problem                                          Solution

  A checklist covers all possible cases                   Allow to :
                                               1. Adapt a checklist :
                                                   1. Only useful elements
                                                   2. add personalized criteria, key-
     A lot of « noise » due to the
                                                      words, modify the structure
  unnecessary criteria presence in the
         context of the project

                                                     Obtain a version of its working
      Increase of the expert work                    checklist really adapted to the
More complexity in the results analysis              targeted project
Harmonizing WCAG Conformity Assessment Method

                             Problem
                  Checklists have different structures
   Checklists      Nb of elements            Description   Notes
   WCAG 2.0              4           Principle
                                      Guideline
                                       Success criterion
                                        Techniques

 AccessiWeb 2.1          4           Thematic
                                      Criterion
                                       Test
                                        Conditions

   AnySurfer             2           Bloc
                                      Guideline

   Abilitynet            1           Success criterion

Technosite/MEWA          1           Criterion

    UWEM 2               4           Principle
                                      Guideline
                                       Success criterion
                                        Techniques
Harmonizing WCAG Conformity Assessment Method

                                        Problem
The relationship to WCAG is established via a measuring level belonging to each checklist
          Checklists          Nb of elements            Description           Notes
          WCAG 2.0                  4           Principle
                                                 Guideline
                                                  Success criterion
                                                   Techniques

        AccessiWeb 2.1              4           Thematic
                                                 Criterion
                                                  Test
                                                   Conditions

          AnySurfer                 2           Bloc
                                                 Guideline

          Abilitynet                1           Success criterion

       Technosite/MEWA              1           Criterion

           UWEM 2                   4           Principle
                                                 Guideline
                                                  Success criterion
                                                   Techniques
Harmonizing WCAG Conformity Assessment Method

            Resulting data model
Harmonizing WCAG Conformity Assessment Method




   WCAG CAC

Physical Data View
Harmonizing WCAG Conformity Assessment Method

           The constraint of the Data Model

    A unique measuring level           A one-to-one relationship with WCAG

        Case of AnySufer               A measuring level is defined by :
Original structure :                   1. A main success criterion
- Bloc                                 2. One or several additional
     - Guideline (mesuring level)         success criteria
          - Critère (mesuring level)



"Rectifying" structure                   The relationship with WCAG is
- Bloc                                   defined by the main success
    - Guideline (mesuring level)         criterion
Harmonizing WCAG Conformity Assessment Method

             Model of correspondence request
              Requests


1. Fusion (Request « Via ») : to mix
   the checklists
2. Comparison (Request « Vs »)
    1. Completion : add informations
    2. Difference : remove information
Harmonizing WCAG Conformity Assessment Method

                   Example for request « Via »
                                            Resulting structure

Common structure                        N
                                         N1                     WCAG
  N
   N1                    AW 2.1             N2

      N2                 Via                     N              AW 2
        N3               WCAG                     N1
           N4                                        N2
                                                          N3
                                                           N4
Harmonizing WCAG Conformity Assessment Method

Example of a complex                                            Resulting structure
      request                                               N
 Common structure                                                              AW 2.1
                                                             N1
                                AW 2.1
     N                                                           N2
      N1                          +                              N2            RGAA
                                 RGAA                                          AnySurfer
         N2                                                      N2
           N3                     +                                   N3
                               AnySurfer                                       AW 2.1
              N4                                                       N4


The request displays AccessiWeb 2.1 checklist with, for each test, all RGAA and Anysurfer
checklist’s tests to add : all those who have no correspondence with AccessiWeb 2.1
checklist
Harmonizing WCAG Conformity Assessment Method

                                 Prototype
                        1. Validate the data model
                        2. Elaborate the requests engine
                        3. Testing all the requests

Phase 1 : simple case                     Phase 2 : more complex cases


      Checklist               Checklist                    Checklist Checklist
                                                              Checklist Checklist




                                                                    WCAG
       WCAG                   Checklist
                                                                     CAC
Harmonizing WCAG Conformity Assessment Method

                 Online Demo
Harmonizing WCAG Conformity Assessment Method

               Thank you

                Questions ?

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WCAG-CAC_csun12

  • 1. Harmonizing WCAG Conformity Assessment Method Session WEB-036 CSUN 2012
  • 2. Harmonizing WCAG Conformity Assessment Method Authors • Dominique Burger : BrailleNet association, president Contact : dominique.burger@upmc.fr • Jean-Pierre Villain : Qelios company, technical director Contact : jpvillain@yahoo.fr • Denis Boulay (speaker) : BrailleNet association, AccessiWeb director Contact : denis.boulay@accessiweb.org
  • 3. Harmonizing WCAG Conformity Assessment Method We are from here
  • 4. Harmonizing WCAG Conformity Assessment Method Content of the session • Presentation of the WCAG CAC (Conformity Assessment Cohenrence) project • Description of a list’s management tool • Demonstration of the tool prototype
  • 5. Harmonizing WCAG Conformity Assessment Method WCAG 2.0 is the universal reference for Web Accessibility • Europe : Communication "Towards an accessible information society" (1.12.2008) • France : Law on the rights of people with disabilities – Article 47 : accessibility of public online services (11.02.2005) Creation of an e-accessibility checklist (RGAA) based on WCAG 2.0 (23.10.2009)
  • 6. Harmonizing WCAG Conformity Assessment Method Demand for independent conformity assessment Third Party Certification • Quality Marks : • Assessment methods • Checklist • Single tests • Certification Process
  • 7. Harmonizing WCAG Conformity Assessment Method Several schemes have emerged • Belgium • France • Italy • Spain • UK All refering to WCAG2.0 ! It works locally in different countries
  • 8. Harmonizing WCAG Conformity Assessment Method Practical questions • Do they really cover 100% WCAG2.0 ? • Do they provide additional information ? • What correspondences between them ? • Do they tell the same story about Web sites ? • Is it possible to certify in one country using a scheme developed in another ?
  • 9. Harmonizing WCAG Conformity Assessment Method WCAG Conformity Assessment Coherence - Phase 1 • Sample pages (32) covering all WCAG AA • Evaluation by experts according their checklists • Comparison of the results • Descriptive Questionnaire to learn more about each checklist and assessment methods
  • 10. Harmonizing WCAG Conformity Assessment Method WCAG Conformity Assessment Coherence - Phase 2 Development of a tool : • Model of Data • Proof of concept
  • 11. Harmonizing WCAG Conformity Assessment Method The project has two main objectives Analyse Use 1. Provide analysis tools to assure 1. Provide tools for the expert in the relation between : order to : 1. a checklist to WCAG 1. adapt a checklist to a web 2. a checklist to another project checklist 2. use several checklists for a 3. several checklists to WCAG same web project 4. several checklists to one 3. Facilitate maintenance and checklist update of checklists
  • 12. Harmonizing WCAG Conformity Assessment Method WCAG CAC project Objective : provide a common recognition scheme based on multiple checklists UWEM (Unified Web Evaluation Methodology) Solution Common checklist Allow to : 1. Choose a working checklist (eg. AW) Lowest common denominator 2. Choose targeted checklists Not adapted to checklists, practices and tools used locally Obtain a version of your working checklist adapted to the constraints and requirements of all targeted checklists Rarely used
  • 13. Harmonizing WCAG Conformity Assessment Method The expert, his working checklist and a web project Objective : work only on what is useful Problem Solution A checklist covers all possible cases Allow to : 1. Adapt a checklist : 1. Only useful elements 2. add personalized criteria, key- A lot of « noise » due to the words, modify the structure unnecessary criteria presence in the context of the project Obtain a version of its working Increase of the expert work checklist really adapted to the More complexity in the results analysis targeted project
  • 14. Harmonizing WCAG Conformity Assessment Method Problem Checklists have different structures Checklists Nb of elements Description Notes WCAG 2.0 4 Principle Guideline Success criterion Techniques AccessiWeb 2.1 4 Thematic Criterion Test Conditions AnySurfer 2 Bloc Guideline Abilitynet 1 Success criterion Technosite/MEWA 1 Criterion UWEM 2 4 Principle Guideline Success criterion Techniques
  • 15. Harmonizing WCAG Conformity Assessment Method Problem The relationship to WCAG is established via a measuring level belonging to each checklist Checklists Nb of elements Description Notes WCAG 2.0 4 Principle Guideline Success criterion Techniques AccessiWeb 2.1 4 Thematic Criterion Test Conditions AnySurfer 2 Bloc Guideline Abilitynet 1 Success criterion Technosite/MEWA 1 Criterion UWEM 2 4 Principle Guideline Success criterion Techniques
  • 16. Harmonizing WCAG Conformity Assessment Method Resulting data model
  • 17. Harmonizing WCAG Conformity Assessment Method WCAG CAC Physical Data View
  • 18. Harmonizing WCAG Conformity Assessment Method The constraint of the Data Model A unique measuring level A one-to-one relationship with WCAG Case of AnySufer A measuring level is defined by : Original structure : 1. A main success criterion - Bloc 2. One or several additional - Guideline (mesuring level) success criteria - Critère (mesuring level) "Rectifying" structure The relationship with WCAG is - Bloc defined by the main success - Guideline (mesuring level) criterion
  • 19. Harmonizing WCAG Conformity Assessment Method Model of correspondence request Requests 1. Fusion (Request « Via ») : to mix the checklists 2. Comparison (Request « Vs ») 1. Completion : add informations 2. Difference : remove information
  • 20. Harmonizing WCAG Conformity Assessment Method Example for request « Via » Resulting structure Common structure N N1 WCAG N N1 AW 2.1 N2 N2 Via N AW 2 N3 WCAG N1 N4 N2 N3 N4
  • 21. Harmonizing WCAG Conformity Assessment Method Example of a complex Resulting structure request N Common structure AW 2.1 N1 AW 2.1 N N2 N1 + N2 RGAA RGAA AnySurfer N2 N2 N3 + N3 AnySurfer AW 2.1 N4 N4 The request displays AccessiWeb 2.1 checklist with, for each test, all RGAA and Anysurfer checklist’s tests to add : all those who have no correspondence with AccessiWeb 2.1 checklist
  • 22. Harmonizing WCAG Conformity Assessment Method Prototype 1. Validate the data model 2. Elaborate the requests engine 3. Testing all the requests Phase 1 : simple case Phase 2 : more complex cases Checklist Checklist Checklist Checklist Checklist Checklist WCAG WCAG Checklist CAC
  • 23. Harmonizing WCAG Conformity Assessment Method Online Demo
  • 24. Harmonizing WCAG Conformity Assessment Method Thank you Questions ?