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Browsing in Hypertext: A Cognitive Study

Carmel, Erran and Crawford, Stephen and Chen, Hsinchun (1992) Browsing in Hypertext: A Cognitive Study. IEEE Transactional on Systems, Man, and Cybermetics 22(5):pp. 865-884.

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Abstract

With the growth of hypertext and multimedia applications that support and encourage browsing it is time to take a penetrating look at browsing behavior. Several dimensions of browsing are examined, to find out: first, what is browsing and what cognitive processes are associated with it; second, is there a browsing strategy, and if so, are there any differences between how subject-area experts and novices browse; and finally, how can this knowledge be applied to improve the design of hypertext systems. Two groups of students, subject-area experts and novices, were studied while browsing a Macintosh H y p e r c a r d application on the subject of The Vietnam War. A protocol analysis technique was used to gather and analyze data. Components of the GOMS model were used to describe the goals, operators, methods, and selection rules observed. Three browsing strategies were identified: 1) search-oriented browse, scanning and reviewing information relevant to a fixed task, 2) reviewbrowse, scanning and reviewing interesting information in the presence of transient browse goals that represent changing tasks, and 3) scan-browse, scanning for interesting information (without review). Most subjects primarily used review-browse interspersed with search-oriented browse. Within this strategy, comparisons between subject-area experts and novices revealed differences in tactics: experts browsed in more depth, seldom used referential links, selected different kinds of topics, and viewed information differently than did novices. Based on these findings, suggestions are made to hypertext developers.

EPrint Type:Journal Article (Paginated)
Keywords:National Science Digital Library, NSDL, Artificial Intelligence Lab, AI Lab, Browsing
Subjects:Information Seeking Behaviors
ID Code:449
Deposited On:22 August 2004
Alternative Locations:http://ai.bpa.arizona.edu/go/papers.html
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