Accessibility and Metadata Liddy Nevile La Trobe University

Summary Accessibility What is it? How does it become involved? Metadata For what purposes? How can it be used?

Accessibility

What is it?

How does it become involved?

Metadata

For what purposes?

How can it be used?

What is accessibility? Not ‘clear’ DC Not access rights Has political connotations ==> generalised definition

Not ‘clear’ DC

Not access rights

Has political connotations

==> generalised definition

W3C efforts in WAI Guidelines Techniques Tests Techniques for tests … Content and presentation

Guidelines

Techniques

Tests

Techniques for tests

…

Content and presentation

Other W3C developments Device independence Protocols and formats cc/pp - composite capabilities and preferences format HTML, XML, RDF, … Scalable vector graphics (SVG)

Device independence

Protocols and formats

cc/pp - composite capabilities and preferences format

HTML, XML, RDF, …

Scalable vector graphics (SVG)

W3C WAI activities.. WCAG ATAG UUAG EO ...

WCAG

ATAG

UUAG

EO

...

ATRC Assistive technologies Web4All ==> ACCLIP (IMS Global) Access4All (A4A) Best Practices Guide But - privacy and security? And political correctness.

Assistive technologies

Web4All

==> ACCLIP (IMS Global)

Access4All (A4A)

Best Practices Guide

But - privacy and security?

And political correctness.

unBounded Access People with cognitive disabilities The engineer use case The non-English speaker …. => language characterisation, concept languages, ...

People with cognitive disabilities

The engineer use case

The non-English speaker

….

=> language characterisation, concept languages, ...

INCITS V2 Mission - access for everyone to everything The universal remote console Use cases (scenarios) ‘skins’ Components - manual, etc… Language independent? flexible?

Mission - access for everyone to everything

The universal remote console

Use cases (scenarios)

‘skins’

Components - manual, etc…

Language independent? flexible?

Metadata Purposes include: Compliance Quality maintenance Discovery Repair Alternative equivalents

Purposes include:

Compliance

Quality maintenance

Discovery

Repair

Alternative equivalents

Possible solutions At systems level: a metadata repository that manages and reports on accessibility compliance (evaluation by agents and people, repair tools, corrected items library, reports, etc) La Trobe experiment

At systems level:

a metadata repository that manages and reports on accessibility compliance (evaluation by agents and people, repair tools, corrected items library, reports, etc)

La Trobe experiment

Possible solutions At metadata level: For compliance dc:relation:conformsTo Needs declaration and certification and …. Evaluation and Repair Language (W3C)

At metadata level:

For compliance dc:relation:conformsTo

Needs declaration and certification and ….

Evaluation and Repair Language (W3C)

Possible solutions At metadata level: For repair dc:relation:……??? Refers to Web services, Cascading Style Sheets, …. For use with assistive technologies A4A description of user’s AT preferences

At metadata level:

For repair dc:relation:……???

Refers to Web services, Cascading Style Sheets, ….

For use with assistive technologies

A4A description of user’s AT preferences

Possible solutions At metadata level: For equivalent alternatives dc:relation:isEquivalentTo Refers to alternative modalities or different but equivalent alternatives ….

At metadata level:

For equivalent alternatives dc:relation:isEquivalentTo

Refers to alternative modalities or different but equivalent alternatives ….

New solutions? Interactive metadata People, resources, devices/services, events/contexts

Interactive metadata

People, resources, devices/services, events/contexts