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Development of a goal-driven analysi...

Albers, Michael Joel.

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Development of a goal-driven analysis for requirements definition in hypertext information systems supporting complex problem-solving.

紀錄類型:	書目-語言資料,印刷品 : Monograph/item
正題名/作者:	Development of a goal-driven analysis for requirements definition in hypertext information systems supporting complex problem-solving./
作者:	Albers, Michael Joel.
面頁冊數:	224 p.
附註:	Chairperson: Thomas Barker.
Contained By:	Dissertation Abstracts International60-04A.
標題:	Information Science. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=9925620
ISBN:	0599253711

Development of a goal-driven analysis for requirements definition in hypertext information systems supporting complex problem-solving.
Albers, Michael Joel.

Development of a goal-driven analysis for requirements definition in hypertext information systems supporting complex problem-solving. - 224 p.

Chairperson: Thomas Barker.

Thesis (Ph.D.)--Texas Tech University, 1999.

When engaged in open-ended problem solving, the user must evaluate information from multiple sources. Unfortunately, people find it difficult to effectively search for and integrate multiple sources of information, requiring the system to provide the information in a manner which relates to the context of the problem. Also, rather than needing information in pre-defined ways, the viewing order and specific information required changes with each problem. As a result, the methods used in conventional task analysis, which focus on defining the individual steps of a well-defined sequence, fail to provide good requirements for systems intended for supporting open-ended problem solving.

ISBN: 0599253711Subjects--Topical Terms:

1017528
Information Science.

Development of a goal-driven analysis for requirements definition in hypertext information systems supporting complex problem-solving.
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245 1 0 $a Development of a goal-driven analysis for requirements definition in hypertext information systems supporting complex problem-solving.
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520 $a When engaged in open-ended problem solving, the user must evaluate information from multiple sources. Unfortunately, people find it difficult to effectively search for and integrate multiple sources of information, requiring the system to provide the information in a manner which relates to the context of the problem. Also, rather than needing information in pre-defined ways, the viewing order and specific information required changes with each problem. As a result, the methods used in conventional task analysis, which focus on defining the individual steps of a well-defined sequence, fail to provide good requirements for systems intended for supporting open-ended problem solving.
520 $a Rather than focusing on individual steps, this dissertation develops a goal-driven analysis methodology based on defining and relating users' goals and information needs. Unlike a task-based analysis, the goal-driven analysis methodology revolves around uncovering the users' goals, the information needed to achieve those goals, and the contextual relationships between information elements. The analysis strives to uncover the major potential problem-solving paths and the information required to support following those paths to provide the problem solver with varied routes to solving a specific problem. The unique feature of goal-driven analysis is that, throughout the methodology, it focuses on maintaining a connection between users' goals, information needs, and problem contexts.
520 $a This dissertation integrates the technical communication, cognitive psychology, and situation awareness literature, and explores the socio-cognitive aspects of information design as they relate to complex problem solving. It begins by arguing that effective information presentation requires a match between the users' mental model, the real-world context, and the factors which contribute to situation awareness. The dissertation then develops a four-step methodology, ethnography, interviews, scenario development, and group discussion, to develop a goal-information diagram which captures a graphical representation of the users' goals and information needs. The goal-information diagram then becomes the foundation for the analyst to use when developing system requirements. The dissertation also provides an extended example of how to perform a goal-driven analysis.
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