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Evaluating usability of interface st...

Vora, Pawan Rikhav.

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Evaluating usability of interface styles and multiple access paths in hypertext.

紀錄類型:	書目-語言資料,印刷品 : Monograph/item
正題名/作者:	Evaluating usability of interface styles and multiple access paths in hypertext./
作者:	Vora, Pawan Rikhav.
面頁冊數:	572 p.
附註:	Adviser: Martin G. Helander.
Contained By:	Dissertation Abstracts International55-11B.
標題:	Computer Science. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=9509175

Evaluating usability of interface styles and multiple access paths in hypertext.
Vora, Pawan Rikhav.

Evaluating usability of interface styles and multiple access paths in hypertext. - 572 p.

Adviser: Martin G. Helander.

Thesis (Ph.D.)--State University of New York at Buffalo, 1994.

Hypertext technology permits a flexible non-sequential mode of information access. Despite the importance of appropriate design of user interfaces in hypertext, few design guidelines exist to assist hypertext authors. In the research described here, three experiments were undertaken to explore usability issues in hypertext interface design.Subjects--Topical Terms:

626642
Computer Science.

Evaluating usability of interface styles and multiple access paths in hypertext.
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245 1 0 $a Evaluating usability of interface styles and multiple access paths in hypertext.
300 $a 572 p.
500 $a Adviser: Martin G. Helander.
500 $a Source: Dissertation Abstracts International, Volume: 55-11, Section: B, page: 5021.
502 $a Thesis (Ph.D.)--State University of New York at Buffalo, 1994.
520 $a Hypertext technology permits a flexible non-sequential mode of information access. Despite the importance of appropriate design of user interfaces in hypertext, few design guidelines exist to assist hypertext authors. In the research described here, three experiments were undertaken to explore usability issues in hypertext interface design.
520 $a In the first experiment, the usability of four types of hypertext interface styles were investigated: graphical with labeled links (GL), graphical with unlabeled links (GU), textual with embedded links (TE), and textual with a separate list of links (TS). A theory of text comprehension were used to build a model for usability. Forty novice subjects participated in the study. Overall, the results favored the GL interface. Over time, however, the differences between the GL interface and the TE interface diminished. In addition, the subjects using the textual interface did not read text, but focused mainly on the highlighted words (or buttons). This behavior could be an important factor in creating a feeling of "incoherence" in readers' minds. The majority of the subjects suggested incorporating additional access pathways to facilitate information access.
520 $a The second experiment determined how hypertext designers could establish these multiple access pathways before conducting usability testing. Organization schemes were, therefore, solicited from the domain experts using a card-organization task. Distinct organization structures emerged from experts with different professional backgrounds, which included professionals from the field of medicine, nutrition, and preventive health.
520 $a Subsequently, the graphical-labeled (GL) version of NutriText was modified to incorporate multiple access pathways--referred to as graphical-multiple (GM) NutriText. Multiple access pathways, contrary to previous evidence, improved task performance. The benefits of multiple structures, however, diminished over time. The subjects interacting with the GM NutriText were satisfied with the interface and did not offer any recommendation to improve its design.
520 $a In sum, these experiments provide empirical evidence in favor of graphical interfaces with labeled links (GL interface) and incorporating multiple semantically based organization structures in hypertext to improve usability of hypertext systems for information access tasks. The results also suggest benefits of extending the theories of text comprehension for designing usable hypertexts.
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