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A Holistic Framework For Web Accessibility

A Holistic Framework For Web Accessibility

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A Holistic Framework For Web Accessibility

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  1. http://www.ukoln.ac.uk/web-focus/events/meetings/bsi-accessibility-2006-01/http://www.ukoln.ac.uk/web-focus/events/meetings/bsi-accessibility-2006-01/ A Holistic Framework For Web Accessibility About This Talk This talk describes a holistic framework to Web accessibility which provides a user-focused approach to accessibility which provides a context for use of WAI WCAG guidelines which recognises embraces diversity rather than mandates conformity Brian Kelly UKOLN University of Bath Bath Email B.Kelly@ukoln.ac.uk UKOLN is supported by:

  2. Contents • Shared Assumptions • WAI Limitations • Holistic Framework • Tangram Model • Questions

  3. Common Assumptions (1) • Things we should have in common: • A desire to see widely-accessible and interoperable services • Use of open standards to provide platform and application-independent services • A recognition of the challenges faced in achieving these aims (funding, time scales, expertise, user requirements, …) • A desire to provide advice on how to achieve the aims whilst acknowledging the challenges Slide used at Accessibility Summit, TechDis, in Feb 2002

  4. Common Assumptions (2) • We also recognise that: • The W3C is the authoritative body which is driving the development of Web standards • W3C WAI has driven the agenda for Web accessibility • W3C WAI has been successful in raising awareness globally that: • Digital resources can be made accessible • Digital resources should be made accessible Slide used at Accessibility Summit, TechDis, in Feb 2002

  5. Problems • Guidelines • WAI model is flawed (see [1]) • WCAG guidelines have flaws • Problems with change control (WCAG  1.0 2.0) • Other Developments • Accessibility issues being addressed elsewhere (formats, applications, OSs, metadata, …) • Context • Need to address diversity and seek wider participation rather than impose universal solutions 1 Further information provided in "Forcing Standardization or Accommodating Diversity? A Framework for Applying the WCAG in the Real World ", W4A, Japan, 2005

  6. UsersNeeds Importance of blended learning Solutions • Holistic framework for e-learning accessibility published in CJLT (2004): • Focuses on the user • and recognises importance of: • External pressures e.g. funders, QAA, … • Technical infrastructure • Resource implications • Learning & teaching outcomes • and requires quality assurance based on documented policies and systematic checking Follow-up work awarded prize for Best Research Paper at ALT-C 2005 E-learning conference

  7. Building On This Work • Current work: • Develop general framework for addressing Web accessibility • Build on existing best practices • Allows for diversity: • User environments • Technical developments (within W3C, other IT developments, other technologies e.g. Podcasting, mobile phones, …) • Context of use (information, learning, culture, …) • Blended accessibility • Personalised solutions

  8. Usability • Jigsaw model implies single solution WCAG OS … • Tangram model encourages diversity of solutions Flash Tangram Model (1) • Generic model: • W3C model has severe limitations • This approach: • Encourages diversity of solutions • Focus on 'pleasure' it provides to user

  9. Tangram Model (2) • Model allows us to: • Focuses on end solution rather than individual components • Provided solutions tailored for end user • Doesn't limit scope (can you do better than WAI AAA?) • Make use of automated checking – but ensures emphasis is on user satisfaction • Guidelines/standards for/from: • WAI • Usability • Organisational • Dyslexic • Learning difficulties • Legal • Management (resources, …) • Interoperability • Accessibility metadata

  10. Relevance To Accessibility Metadata • This approach: • Based on principle of "widening participation" rather than "universal accessibility" • Acknowledges that there may be tensions and conflicts • Provides a bigger picture for user and developer communities • Puts WAI guidelines within the context of a bigger picture • Shows how accessibility metadata relates to a bigger picture • Is itself an example of a personalised / blended solution

  11. Discussion • Questions., comments, etc. welcome