Heuristic Evaluation

Übung Mensch-Maschine-Interaktion 1, Wintersemester 2008/09


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Evaluation is systematic determination of merit, worth, and significance of something or someone using criteria against a set of standards. (Wikipedia)

American Evaluation Association Guiding Principles for Evaluators

  1. Systematic Inquiry: Evaluators conduct systematic, data-based inquiries.
  2. Competence: Evaluators provide competent performance to stakeholders.
  3. Integrity/Honesty:  Evaluators display honesty and integrity in their own behavior, and attempt to ensure the honesty and integrity of the entire evaluation process.
  4. Respect for People:  Evaluators respect the security, dignity and self-worth of respondents, program participants, clients, and other evaluation stakeholders.
  5. Responsibilities for General and Public Welfare: Evaluators articulate and take into account the diversity of general and public interests and values that may be related to the evaluation.

Why Evaluations?


Reality Check

Heuristic Evaluation

Proposed by Nielson and Molich (1990) (see also www.useit.com/papers/heuristic/)

Steps of an Heuristic Evaluation

1. Preparation

2. Evaluation

3. Analysis

Usability Heuristics

Ten Usability Heuristics by Nielsen

  1. Visibility of system status
  2. Match between system and the real world
  3. User control and freedom
  4. Consistency and standards
  5. Error prevention
  6. Recognition rather than recall
  7. Flexibility and efficiency of use
  8. Aesthetic and minimalist design
  9. Help users recognize, diagnose, and recover from errors
  10. Help and documentation

Severity Rating

Usability Report

Sources & Recommended Reading