Authors:
Khalid Al-Omar
and
Dimitris Rigas
Affiliation:
University of Bradford, United Kingdom
Keyword(s):
Adaptive, Adaptable, Mixed-Initiative, Static, Usability, Effectiveness, Interactive.
Related
Ontology
Subjects/Areas/Topics:
Data Engineering
;
e-Business
;
Enterprise Information Systems
;
Ontologies and the Semantic Web
;
User Interfaces and Usability
;
Web and Mobile Business Systems and Services
;
Web Information Systems and Technologies
;
Web Interfaces and Applications
;
Web Personalization
Abstract:
This paper introduces an empirical study to investigate the use of four interaction conditions: Static, Adaptable, Adaptive, and Mixed-initiative. The aim of this study is to compare the effectiveness of these four conditions with regard to the number of tasks completed by all users and the number of users who completed all tasks. In order to carry out this comparative investigation, four experimental interfaces were built separately. These environments were tested independently by four separate groups of users, each group consisting of 15 users. The results demonstrated that in the searching tasks the most effective condition was the Mixed-Initiative. In the learnable tasks the most effective condition was the Adaptable condition. In addition, the Static approach was found to be less effective than all other approaches.