WCAG-CAC_csun12

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  • 1. Harmonizing WCAG Conformity Assessment Method Session WEB-036 CSUN 2012
  • 2. Harmonizing WCAG Conformity Assessment Method Authors• Dominique Burger : BrailleNet association, presidentContact : dominique.burger@upmc.fr• Jean-Pierre Villain : Qelios company, technical directorContact : jpvillain@yahoo.fr• Denis Boulay (speaker) : BrailleNet association, AccessiWeb directorContact : 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 assessmentThird 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• UKAll 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 2Development of a tool :• Model of Data• Proof of concept
  • 11. Harmonizing WCAG Conformity Assessment Method The project has two main objectives Analyse Use1. 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 checklistsUWEM (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 MethodThe 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 theMore 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 criterionTechnosite/MEWA 1 Criterion UWEM 2 4 Principle Guideline Success criterion Techniques
  • 15. Harmonizing WCAG Conformity Assessment Method ProblemThe 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 CACPhysical 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 Requests1. Fusion (Request « Via ») : to mix the checklists2. Comparison (Request « Vs ») 1. Completion : add informations 2. Difference : remove information
  • 20. Harmonizing WCAG Conformity Assessment Method Example for request « Via » Resulting structureCommon 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 MethodExample 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 N4The request displays AccessiWeb 2.1 checklist with, for each test, all RGAA and Anysurferchecklist’s tests to add : all those who have no correspondence with AccessiWeb 2.1checklist
  • 22. Harmonizing WCAG Conformity Assessment Method Prototype 1. Validate the data model 2. Elaborate the requests engine 3. Testing all the requestsPhase 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 ?