Methoden vergleichen

	Cognitive Walkthrough	KLM-GOMS
Fachgebiet	Mensch-Computer-Interaktion	Mensch-Computer-Interaktion
Familie	Hypothesis test	Hypothesis test
Entstehungsjahr	1990	1983
Urheber	Clayton Lewis, Peter Polson, Cathleen Wharton, John Rieman	Stuart Card, Thomas Moran, Allen Newell
Typ	Evaluative walkthrough examining how users learn to use an interface	Computational cognitive model for task execution time prediction
Wegweisende Quelle	Lewis, C., Polson, P. G., Wharton, C., & Rieman, J. (1990). Testing a walkthrough methodology for specifying and evaluating user interface designs. In Proceedings of the SIGCHI Conference on Human Factors in Computing Systems (pp. 387–392).	Card, S. K., Moran, T. P., & Newell, A. (1983). The Psychology of Human-Computer Interaction. Lawrence Erlbaum Associates. ISBN: 0898592437
Aliasnamen	Cognitive Walkthrough, CW Analysis	GOMS Model, KLM
Verwandt	4	4
Zusammenfassung	Cognitive Walkthrough is an inspection method for evaluating interface designs by simulating and analyzing how users will learn to use a system through exploration and trial. Developed by Clayton Lewis, Peter Polson, Cathleen Wharton, and John Rieman in 1990, this method is grounded in cognitive psychology and focuses specifically on learnability—whether first-time or occasional users can discover how to perform tasks without formal training. Evaluators role-play user actions, answer a set of critical questions about feedback and discovery at each step, and document usability problems.	The Keystroke-Level Model (KLM), part of the Goals-Operators-Methods-Selection rules (GOMS) framework, is a computational method for predicting how long a user will take to accomplish a routine task using an interactive system. Developed by Card, Moran, and Newell in 1983, KLM decomposes user actions into primitive operators (keystrokes, mouse clicks, mental preparation, system response waits) with empirically derived execution times, enabling designers to estimate task performance without running user studies.