Title
Modeling users' task performance on the mobile device: PC convergence system
Abstract
This study aims to establish a model-based approach for user interface design that simultaneously considers the system's information hierarchy, users' task procedure knowledge, and system interfaces. The approach is based on a framework that contains multiple interaction models to express both system elements and users' knowledge. The framework evaluates system interface through the interaction between user's knowledge on interface, task procedure and information structure perceived by the user in the system. The interface is evaluated by its contribution to the users' task performance and system navigation. These three factors were defined as design factors that affect users' task performance. Through the crosscheck process of models, the relation between information, interface, and task procedure is calculated into combined difficulty index (CDI) that expresses the difficulty of a system interface that users would experience during the use of system. A user test was conducted for the validation of the CDI. The difficulties of the interface of a mobile healthcare system were predicted with the CDI, and the predictions were compared with the experimental results, where the users' performance showed consistence with the prediction.
Year
DOI
Venue
2006
10.1016/j.intcom.2006.01.003
Interacting with Computers
Keywords
Field
DocType
task procedure,mobile device,system element,user test,user interface design,mobile healthcare system,task performance,pc convergence system,information hierarchy,task procedure knowledge,system navigation,system interface,procedural knowledge,indexation
Convergence (routing),Information structure,Task analysis,Computer science,Human–computer interaction,Mobile device,User modeling,User interface,User interface design,Hierarchy,Multimedia
Journal
Volume
Issue
ISSN
18
5
Interacting with Computers
Citations 
PageRank 
References 
3
0.39
8
Authors
2
Name
Order
Citations
PageRank
Seung Hun Yoo130.39
Wan Chul Yoon214719.80