Accessibility Descriptions of Educational Resource Sets
A set of educational resources (as a whole) may have one or more associated terms each of which designates an accessibility properties scheme to which the resources claim to conform
A small vocabulary, of which each term denotes an accessibility resource conformance scheme and refinements and other information required.
Examples might include
- WCAG 1.0
- WCAG 2.0
- Section 508
WCAG 1.0
refinement would include (To Be Done)
WCAG 2.0
(summarised and modified for resources from http://www.w3.org/TR/WCAG20/#conformance) refinement and other information would include
- Date of the claim
- Guidelines title, version and URI
- Conformance level satisfied: (Level A, AA or AAA)
- A list of accessibility-supported technologies that relied upon
and optionally include
- A list of Success Criteria beyond the level of conformance claimed that have been met.
- A list of the specific technologies that are "used but not relied upon
- A list of user agents, including assistive technologies, that were used to test the content.
- Information about any additional steps taken that go beyond the Success Criteria to enhance accessibility.
- A machine-readable metadata version of the list of specific technologies that are relied upon.
- A machine-readable metadata version of the conformance claim.
Additional information may be required where the resources are sets of web pages
NOTES*
WCAG 2.0 is designed to apply to web pages not to sets of resources. However, in many cases the same properties can apply to packaged or otherwise-described sets of web pages and also to non web-page resources and we recommend that takes place.
Section 508
(To Be Done, see http://www.section508.gov/)
Metadata and Alternative Resources
(Rationale - To Be Done)
Digital Resource Descriptions
ISO/IEC JTC1 SC36 Individual Adaptability and Accessibility for eLearning, Education (24751) and Training defines Metadata that descibes accessibility properties of Digital Resource for Learning. The princple components of Metadata descriptions adhering to that Standard are terms describing the acess mode (Visual, Auditory, Tactile, Olfactory etc.) and representation form (for example enhanced, verbatim, reduced, real-time, transcript, alternative text, long
description, talking book, Daisy, image-based, symbolic, recorded, synthesized, Braille, haptic) of learning resources and their components and a mechanism for identifying alternative resources for those to meet specific accessibility requirements. Metadata statements describing these properties for a resource or media object are called Digital Resource Desciptions
As a principle each digital resource or media object should have associated one or more such statements depending on the granularity of media objects and learning objects. In some cases it will be appropriate that a learning object will have many such statements (one for each media object). In some cases media objects and learning objects will be the same thing or an appropriate mechanism will be used to determine the access mode of the learning object from the component media objects and there will in this case be one such statement. For example a learning object containing many images and nothing else might be described with the single Metadata term "visual" for all of the images.
More information on this can be found in the standard at http://jtc1sc36.org/Workgroups/Work%20Group%20Seven
Other Accessibility Metadata
To be done: Metadata properties that match delivery environment