Lecture 12: Expert Evaluation

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Learning Objectives

Types of Usability Evaluation

Expert-Review-Based Methods

Cognitive Walkthrough

Prerequisites

The Four Questions

Pros & Cons

Further Reading

Heuristic Evaluation

Nielsen’s 10 Usability Heuristics

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

Process

How Many Evaluators?

Severity Ratings

Reporting

Pros & Cons