Type of Document	Master's Thesis
Author	Rao, Sushma
Author's Email Address	sushma@vt.edu
URN	etd-11192002-164448
Title	Application of Human-computer Interaction Theories to Information Design on Internet Portals
Degree	Master of Science
Department	Industrial and Systems Engineering
Advisory Committee	Advisor Name Title Smith-Jackson, Tonya L. Committee Chair Scales, Glenda Rose Committee Member Williges, Robert C. Committee Member
Keywords	Information Foraging Theory Human-computer Interaction Web Information Design Remote Data Collection Information Scent Internet Portals HCI Theories
Date of Defense	2002-07-11
Availability	unrestricted
Abstract Internet portals are increasingly becoming a primary source of information. A portal is a gateway to information on the Internet or a hub from which users may locate relevant information (Strauss, 2000). Because university Web sites have various user classes, universities are beginning to adopt the portal concept for their Web sites. The study conducted aimed to determine the effect of tailoring information content and presentation style on a university Web portal. User ratings of information design on three metrics and user task performance measures of time and errors were compared for four prototypes. Three prototypes were built on the basis of user requirements and two Human-computer Interaction (HCI) theories and one was a replica of an existing academic information portal. The three metrics were derived from the HCI theories. The contributions of the study are a determination of user acceptance of and user performance with the tailored presentation styles and three metrics derived from HCI theories that can be used to compare alternative information presentation styles for portals. An important contribution is the remote data collection technique that was used in the study and a time-stamping technique that recorded clicks on hyperlinks.
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