Accession Number : ADA317580

Title :   Tracking the Effectiveness of Usability Evaluation Methods.

Descriptive Note : Technical rept.,

Corporate Author : CARNEGIE-MELLON UNIV PITTSBURGH PA DEPT OF COMPUTER SCIENCE

Personal Author(s) : John, Bonnie E. ; Marks, Steven J.

PDF Url : ADA317580

Report Date : 12 AUG 1996

Pagination or Media Count : 24

Abstract : We present a case study that tracks usability problems predicted with six usability evaluation methods (Claims Analysis, Cognitive Walkthrough, GOMS, Heuristic Evaluation, User Action Notation, and simply reading the specification) through a development process. We assess the methods predictive power by comparing the predictions to the results of user tests. We assess the methods persuasive power by seeing how many problems led to changes in the implemented code. We assess design-change effectiveness by user testing the resulting new versions of the system. We conclude that predictive methods are not as effective as the HCI field would like and discuss directions for future research.

Descriptors :   *COMPUTER PROGRAM VERIFICATION, COMPUTER AIDED DESIGN, HEURISTIC METHODS, SYSTEMS ANALYSIS, MACHINE CODING, COMPUTER PROGRAM RELIABILITY, COMPUTER BENCHMARKING.

Subject Categories : Computer Programming and Software

Distribution Statement : APPROVED FOR PUBLIC RELEASE