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      • HARVEST
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      Using a common accessibility profile to improve accessibility

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      Date
      2007-12-03
      Author
      Fourney, David W.
      Type
      Thesis
      Degree Level
      Masters
      Metadata
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      Abstract
      People have difficulties using computers. Some have more difficulties than others. There is a need for guidance in how to evaluate and improve the accessibility of systems for users. Since different users have considerably different accessibility needs, accessibility is a very complex issue.ISO 9241-171 defines accessibility as the "usability of a product, service, environment or facility by people with the widest range of capabilities." While this definition can help manufacturers make their products more accessible to more people, it does not ensure that a given product is accessible to a particular individual.A reference model is presented to act as a theoretical foundation. This Universal Access Reference Model (UARM) focuses on the accessibility of the interaction between users and systems, and provides a mechanism to share knowledge and abilities between users and systems. The UARM also suggests the role assistive technologies (ATs) can play in this interaction. The Common Accessibility Profile (CAP), which is based on the UARM, can be used to describe accessibility.The CAP is a framework for identifying the accessibility issues of individual users with particular systems configurations. It profiles the capabilities of systems and users to communicate. The CAP can also profile environmental interference to this communication and the use of ATs to transform communication abilities. The CAP model can be extended as further general or domain specific requirements are standardized.The CAP provides a model that can be used to structure various specifications in a manner that, in the future, will allow computational combination and comparison of profiles.Recognizing its potential impact, the CAP is now being standardized by the User Interface subcommittee the International Organization for Standardization and the International Electrotechnical Commission.
      Degree
      Master of Science (M.Sc.)
      Department
      Computer Science
      Program
      Computer Science
      Supervisor
      Carter, James A.
      Committee
      Vanderheiden, Gregg; Tremblay, Jean-Paul; Cooke, John; Cheston, Grant A.
      Copyright Date
      December 2007
      URI
      http://hdl.handle.net/10388/etd-12032007-003104
      Subject
      ISO/IEC 24756
      metric
      persona
      environment
      human-centered design
      user-centered development
      disabled
      disability
      human factors
      standard
      Common Access Profile
      Collections
      • Graduate Theses and Dissertations
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