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Designing Interface for Disability

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Title: Designing Interface for Disability


1
Designing Interface for Disability
  • A. Tijani 0319978
  • S. Cook 0316960

2
VARIOUS TYPES OF DISABILITIES
  • Cognitive
  • Long/Short Sighted
  • Dyslexia
  • Hearing
  • Physical
  • Language Disorder stroke, Alzheimers, Brain
    damage etc.
  • Speech, Visual etc.

3
Factors to be consider when designing an
interface for disabilities
  • Cognitive Disability cognitive disabilities
    accompanied by physical disabilities Users with
    cognitive disabilities include users with
    learning disabilities with or without deficit,
    they interact with technology in various ways.
  • (1) Designers need to understand the deficits
    of these users when designing interface that need
    to be access by this users.
  • (2) Most learning disorders are often elderly.
    Victim with learning disabilities go hand-hand
    with Attention Deficit Disorder and Hyperactivity
    (ADD or ADHD).

4
Factors to be consider when designing an
interface for disabilities
  • (3) Victim with language disabilities may lose
    their ability to communicate effectively and
    short and long term memory loss, word finding and
    syntax difficulties.
  • In designing interface for cognitive disabilities
    these three in which technology has been
    historically used are
  • Compensation (assistive technologies)
  • Diagnostics and assessment

5
Factors to be consider when designing an
interface for disabilities
  • (1) Computer Assisted Instruction CAI This
    software is design to provide remediation in
    specific area through repeated drills.
  • (2) Multi-media based, open-ended package
    software also designed to encourage the user with
    the development of written skill.
  • Compensation and/ or assistive technologies for
    cognitive difficulties is a significant area.
    This is particularly true because the law
    mandates these accommodations. The

6
Factors to be consider when designing an
interface for disabilities
  • Americans with disabilities Act (ADA)1990 stated
    that accommodations need to be made for
    disabilities at workplace.
  • Education Disabilities Act (EDA) 1997, provided
    that assistive technology devices and services
    are required to be made available
  • to students and youth ensuring a free,
    appropriate public education.

7
Factors to be consider when designing an
interface for disabilities
  • Identify problems with cluttered interfaces
    causing distraction to learning disabled users.
    It is important also when matching the
    remediation method chosen for in class education,
    creating modifiable programs that can be
    tailored to a students needs and providing
    frequent informative feedback. Some software are
    more effective than other, Larsen, Steen. 1995
    identifies difficulties with distracting
    interface and animation in remediation software.

8
Factors to be consider when designing for users
  • Designers should include cognitive disabilities
    in the design, research, and development of new
    technologies, and they should be sure to create
    that inclusive across cultures.
  • (2) Designers should remember the 8 shneidermans
    golden rules of interface design. In particular
    users with disabilities benefit from design that
    stress consistency, informative feedback, error
    prevention with friendly error handling, and
    reduce short term memory load.
  • The 8 Schneiderman rules of interface
    design are
  • . Strive for consistency
  • . Offer error prevention and simple error
    handling
  • . Design dialogs to yield closure

9
Factors to be consider when designing for users
  • . Enable frequent users to use shortcuts
  • . Support internal locus of control
  • . Reduce short-term memory load
  • . Permit easy reversal of actions.

10
Factors to be consider when designing an
interface for disabilities
  • Long/Short Sighted- Designers for the web
    specifically, designers need to balance the
    demand for different types of users. It might be
    efficacious to provide different access methods,
    they should be remember to provide
  • (1) Avoid clutter
  • (2) Create modifiable software
  • (3) Provide software with useful, informative,
    and frequent feedback
  • (4) Provide multiple methods for access

11
Factors to be consider when designing an
interface for disabilities
  • (5) Support for text browsers on the WWW
  • (6) Alternative method for on line form.
  • (7) Information layouts and easy to understand,
    e.g. Display important information in a
    prominent area to catch the users eye.

12
Factors to be consider when designing an
interface for disabilities
  • Speech
  • - use of predictive algorithm to anticipate the
    words used and fill them in.
  • - Speech synthesis and text based tools to aid
    communication

13
Factors to be consider when designing an
interface for disabilities
  • Dyslexia
  • - Speech input/output to alleviate the need to
    read and write
  • - Spelling correction facilities can help users
  • - Consistent navigation structure and clear
    signposting cues

14
Factors to be consider when designing an
interface for disabilities
  • Hearing impaired
  • Captioning audio content if not already in
    graphical or textual version e.g. in the use of
    multimedia presentations
  • Gesture recognition to translate signing to
    speech or text to aid non-signers.

15
REFERENCES
  • 1- Schneiderman's, Ben.1998. Designing the user
    interface strategies for effective
    Human-Computer Interaction 3rd ed.
  • 2- Larsen, Steen.1995 Technology for learning
    disabilities.
  • 3- Lewis, Rena B. 1998 Assistive technology and
  • Learning disabilities.

16
Refrences
  • 4 Lundberg,I. 1995. The computer as a tool of
    remediation in the education for reading
    disabilities.
  • 5- Hill, Janette R. and Michael J. Hannafin.
    1997. Cognitive strategies and learning from the
    World Wide Web, ETRD Educational Technology
    Development
  • 6- Alan Dix, Janet Finlay, Gregory D. Abowd,
    Russell Brale, 2004,Human Computer Interaction
    Third Edition.
  • 7- http//aifia.org/nl/translations/000187.html
  • 8-http//meiert.com/de/publications/translations/a
    sktog.com/firstprinciples/
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