Design Guidelines (cont.)

Table of Contents

Design Guidelines (cont.)

Usability Goals

Design Guidelinesin more detail

Guideline Mania

Today

Norman’s Action Cycle

Norman’s Action Cycle

Action Cycle

Action Cycle

Gulf of Evaluation

Gulf of Execution

Four-level model

Four-level model

Four-level model

Four-level model

Four-level model

Consistency

Lexical Consistency

Syntactic Consistency

Semantic Consistency

Inconsistency

Inconsistency

Provide Feedback

Lexical Feedback

Syntactic Feedback

Semantic Feedback

Visibility of Feedback

Audio Feedback

Errors

Designing for Error

Error Types

Error Types

Reducing Errors

Error Correction

Error Correction

Why are Guidelines Insufficient?

Summary

Email: hearst@sims.berkeley.edu

Home Page: http://sims.berkeley.edu/~hearst

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