GOMS Analysis & Web Site Usability

4/15/99


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Table of Contents

GOMS Analysis & Web Site Usability

GOMS Analysis Outline

GOMS at a glance

Model Human Processor (MHP) Revisited

MHP Revisited

MHP Subsystems

MHP Subsystems

MHP Subsystems

MHP Subsystem Interactions

MHP Parameters

Perceptual Subsystem Parameters

One Principle of Operation

Original GOMS (CMN-GOMS)

CMN-GOMS

Text-Editing Example

CMN-GOMS Analysis

Limitations of CMN-GOMS

Norman’s Action Cycle

Variants of GOMS

Text-Editing Example (KLM)

Variants of GOMS

Text-Editing Example (NGOMSL)

Variants of GOMS

Text-Editing Ex. (CPM-GOMS)

GOMS in Practice

Summary

Web Site Usability Outline

The Spool Study

Usability Testing of Web Sites

Sites

Tasks

Tasks

Comparison of Sites

Overall Site Usability

Spool et al’s Web Site Usability Issues

Ivory’s Web Site Usability Issues (Preliminary)

Web Site Usability Issues

Web Site Usability Issues

Major Implications

Major Implications

Major Implications

 Author: Melody Y. Ivory

Email: ivory@cs.berkeley.edu

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