The Challenge of Accessible Rich Media Presenters: Chris Newman Chris Frost.
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Transcript of The Challenge of Accessible Rich Media Presenters: Chris Newman Chris Frost.
The Challenge of Accessible Rich Media
Presenters:• Chris Newman• Chris Frost
The role of ERU
Print• Learning guides• Readers• Reports
Multimedia• Websites• CD-ROM• Blackboard
Rich Media
• multimedia + interaction• system that supports the interactive use of text, audio, still images, video, [animation] and graphics
TAMU University, Glossary of Distance Education Terms
Application to accessibility
• Universal Design – good design is inclusive
• multiple modes are inherent in multimedia
www.cast.org
Learning with multimedia
Unique advantages for learning
• Learning preferences• Dual Code• Constructivism• Social Agency• Gaming and Motivation
Learning with multimedia
Unique advantages for learning
• Learning preferences• Dual Code• Constructivism• Social Agency• Gaming and Motivation
Learning with multimedia
Unique advantages for learning
• Learning preferences• Dual Code• Constructivism• Social Agency• Gaming and Motivation
Learning with multimedia
Unique advantages for learning
• Learning preferences • Dual Code• Constructivism• Social Agency• Gaming and Motivation
Exploratory learning
Active Learning
Simulations
Authentic Tasks
Experiential Learning
Learning with multimedia
Unique advantages for learning
• Learning preferences• Dual Code• Constructivism• Social Agency• Gaming and Motivation
Communication tools
Group tools
Learning with multimedia
Unique advantages for learning
• Learning preferences• Dual Code• Constructivism• Social Agency• Gaming and Motivation
Learning with multimedia
Unique advantages for learning
• Learning preferences• Dual Code• Constructivism• Social Agency• Gaming and Motivation
TEDI’s accessibility plan
Colour deficiency
The three types of cone cell in the human eye
The effects of colour deficiency
Colour simulations created with the Visicheck Photoshop plugin, available at http://www.vischeck.com/downloads/
Dealing with colour deficiency
Use shape then colour
Demonstration
Project Tracking System
Accessibility of media: HTML
Issue Support
Blindness Enough thought must be given to semantics and reading order. The user must have their own text-to-speech software.
Low Vision Okay if the designer has allowed for a scalable, liquid layout
Auditory Applies to embedded content and will be discussed later
Motor Enough thought must be given to tab order. Access keys can be added for common navigational controls.
Cognitive Quite good as HTML supports a wide range of media
Accessibility of media: Flash
Issue Support
Blindness Text-to-speech access does not exist in the standalone player. In-browser support is limited to Internet Explorer on PC.
Low Vision HTML style liquid layouts are difficult to achieve. Some other options follow: as this is a vector format, the image, animation or interaction can be
presented in a larger format with no extra download time; the developer can script for zoom functionality if space is at a premium; otherwise the user can resize the containing frame or window.
Auditory Captions can quite easily be added, either directly on the timeline or stored in an external XML document.
Motor Tab order can be defined. Arrow keys can be used to select buttons. For example: the left arrow key
selects will select the next input element to the left. Custom events can even be triggered when the user presses a certain
key. There’s no limit to this keyboard access within the standalone player. The bad news is that the user must click the flash movie with a pointer
device to gain keyboard access in any browser other than Internet Explorer.
Cognitive Allows for text content to be supplemented with images, video, animations or interactions.
Accessibility of media: Director
Issue Support
Blindness Director uses the Operating System’s own speech API directly, so there is no need for dedicated text-to-speech software.
Low Vision HTML style liquid layouts are difficult to achieve. The user can resize the containing window to if the developer has set the content to be scalable.
Auditory Captions can easily be added. A button or keystroke can be specified to allow the user to show or hide captions.
Motor Tab order can be defined. Custom events can even be triggered when the user presses a certain
key.
Cognitive Allows for text content to be supplemented with images, video, animations or interactions.
Questions?