Predicting User Performance and Errors: Automated Usability Evaluation Through Computational Introspection of Model-Based User Interfaces

by Marc Halbrügge

Overview

This book proposes a combination of cognitive modeling with model-based user interface development to tackle the problem of maintaining the usability of applications that target several device types at once (e.g., desktop PC, smart phone, smart TV). Model-based applications provide interesting meta-information about the elements of the user interface (UI) that are accessible through computational introspection. Cognitive user models can capitalize on this meta-information to provide improved predictions of the interaction behavior of future human users of applications under development.

In order to achieve this, cognitive processes that link UI properties to usability aspects like effectiveness (user error) and efficiency (task completion time) are established empirically, are explained through cognitive modeling, and are validated in the course of this treatise. In the case of user error, the book develops an extended model of sequential action control based on the Memory for Goals theory and it is confirmed in different behavioral domains and experimental paradigms.

This new model of user cognition and behavior is implemented using the MeMo workbench and integrated with the model-based application framework MASP in order to provide automated usability predictions from early software development stages on. Finally, the validity of the resulting integrated system is confirmed by empirical data from a new application, eliciting unexpected behavioral patterns.

Product Details

ISBN-13:	9783319603698
Publisher:	Springer-Verlag New York, LLC
Publication date:	07/20/2017
Series:	T-Labs Series in Telecommunication Services
Sold by:	Barnes & Noble
Format:	eBook
Pages:	149
File size:	2 MB

Table of Contents

Introduction.- Part I Theoretical Background and Related Work: Interactive Behavior and Human Error.- Model-Based UI Development (MBUID).- Automated Usability Evaluation (AUE).- Part II Empirical Results and Model Development: Introspection-Based Predictions of Human Performance.- Explaining and Predicting Sequential Error in HCI With Cognitive User Models.- The Competent User: How Prior Knowledge Shapes Performance and Errors.- A Deeply Integrated System for Introspection-Based Error Prediction.- The Unknown User: Does Optimizing for Errors and Time Lead to More Likable Systems?- General Discussion and Conclusion.