HCI 460

Spring 2016

Craig Miller

Weekly Notes

Assignments

Usability Objectives

Rubin's four dimensions for evaluating usability (first edition, pp. 18-19)

  1. Usefulness
  2. Effectiveness (ease of use)
  3. Learnability
  4. Attitude (likeability)

This list has been revised for the new edition (pp. 4 - 6):

  1. Usefulness
  2. Efficiency
  3. Effectiveness
  4. Learnability
  5. Satisfaction
  6. Accessibility

Discussion questions

  • What are common alternative names for these objectives?
  • How can these objectives be measured or verified?
  • The revised edition implies there is a distinction between efficiency and effectiveness? Is there one? Can an application be efficient but not effective?
  • Are any missing from these lists?