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Usability and Internet Instruction

Usability and Internet Instruction. INST 5240 Mimi Recker Utah State University. Usability and Internet Instruction. User interface design for usability: enables users to fluently achieve particular goals in some domains

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Usability and Internet Instruction

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  1. Usability and Internet Instruction INST 5240 Mimi Recker Utah State University

  2. Usability and Internet Instruction • User interface design for usability: • enables users to fluently achieve particular goals in some domains • seamless integration of content and control, including layout of information and navigation • depends on technology; depends on deep understanding of human elements within interaction • Examples of usable and unusable interfaces?

  3. Usability in Internet Systems • Loss of technical control • Display hardware • Connection speed • Software • User settings • Loss of content control • Hypertext • Outside links

  4. Small Group Discussion • What makes an Internet-based education site usable? • What makes an Internet-based education site unusable? • What makes an Internet-based education site learnable? • ...Identify top 3 characteristics

  5. Principles to Support Usability • 1. Learnability • Predictability • Familiarity • Consistency

  6. Usability Design Principles • 2. Flexibility • Customizability • Substitutivity (e.g. ‘shortcuts’) • 3. Robustness • Observability (provide clear visual messages) • Recoverability • Responsiveness (feedback) • Task-specific support for user’s goals

  7. Usability via User-Centered Design • Design philosophy: • Early focus on users and their concrete needs -- designers contact real users • Integrated design • Early and continual user testing -- empirically driven • Iterative design with progressive refinement • Taking an expanded view of the product • Focus on satisfying concrete needs of real users

  8. Process of User-Centered Design • Continuous cycles of design, enactment, analysis, and redesign: • Conduct needs assessment • Design/develop rapid prototype • Evaluate • Analyze • Redesign

  9. UCD: Examples • Needs assessment: • What are learning objectives? • How will web resources help students learn? • Do users have reliable access? • Design rapid prototype: • Design brief • Screen/paper mock-up • Alpha, beta versions • Evaluate: • [see next slide] • Analyze data: • combine, categorize, diagnose, prioritize • Redesign

  10. Evaluation • Recruit participants • client, experts, users … • Evaluation strategies • expert review, cognitive walkthrough, survey, focus group, interview, observation, assess learning/impact …

  11. Two Evaluation Examples • 1. Webby awards • Content • Structure & navigation • Visual design • Functionality • Interactivity • Overall experience • (http://www.webbyawards.com/main/webby_awards/criteria.html) • 2. WAMMI: Web usability questionnaire

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