Access to Multimedia Textbooks and Instructional Materials
Workshop presented at the Assistive Technology Industry Association Conference, 2001. Orlando Florida by Jim Allan, Texas School for the Blind and Visually Impaired,
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, (512)-206-9315
Learning Outcomes
Attendees will be able to list the accessibility problems associated with multimedia textbooks
Attendees will be able to identify organizations involved in making multimedia textbooks accessible to students with disabilities.
Attendees will be able to examine examples of multimedia and describe accessibility problems.
Textbooks and other printed textbooks and instructional materials are slowly (rapidly, depending on your source) being phased out. They are being replaced with digital text and multimedia delivered via CD-ROM, DVD, or the World Wide Web. However, these digital materials are not accessible to students with visual, auditory or motoric impairments. This session will review the accessibility problems associated with multimedia textbooks, discuss current projects around the country that seek to improve accessibility, and participants will preview example materials and discuss accessibility problems.
Underlying Assumptions
Accessibility must be built in, not added on. Universal design will benefit all users, not merely those with disabilities.
As technology becomes more important, accessibility becomes more important.
Additional dialogue and research are needed on emerging technological accessibility problems, no only for people with disabilities, but for all under-represented individuals in society--the poor, the isolated, and the vulnerable.
(Annenberg Washington Program; Communications Technology for Everyone, Implications for the Classroom and Beyond, 1994)
Accessibility
The foundation of accessibility for people with disabilities is the concept of redundancy. A foundation of redundancy allows the configuration of products, so an individual can access information and the computer in a method that is most beneficial and meaningful to that individual.
Accessibility to products is a compromise. All accessibility features do not need to be built into a product. However, the "hooks" or links to information for access for people with disabilities MUST be in place to provide access through existing accessibility tools.
Redundancy for accessibility contains two components, input redundancy and output redundancy.
Input redundancy provides multiple methods of entering or selecting information on the computer screen. Redundancy of input includes or allows
keyboard equivalents for buttons (keyboard access to navigation on the screen)
access via mouse
access via speech
access via touch screen
Output or Information redundancy provides multiple or selectable forms of the information (output) displayed on the computer screen. Redundancy of output/information includes, but is not limited to:
access to information by assistive technology (screen enlargers, and screen review software)
descriptive video for action taking place in the video
closed captioning of any speech on the screen
text of the descriptive video
text of captioning
Spanish language version (including menus, buttons, etc.)
hot key describing key equivalents
descriptions of graphics available in accessible manner
text digitized speech visible on screen
visual indication of auditory clues (computer beep)
Other concerns and issues
labels on materials, disks etc. should be in large print (18 point)
documentation should be on disk in a marked up file
accessibility features should be selectable at any time with in the product
all materials should be based on an underlying structure (HTML, SMIL (Synchronized Multimedia Integration Language), SVG (Structured Vector Graphics))
teacher materials concerning modification of instruction for students with disabilities
representation of people with disabilities within media materials
Authoring Tool Accessibility Guidelines 1.0 For software developers, explains how to make a variety of authoring tools support the production of accessible Web content, and also how to make the software itself accessible.
User Agent Accessibility Guidelines 1.0 For software developers, explains how to make accessible browsers, multimedia players, and assistive technologies that interface with these.