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References Navigation arrow Authors Navigation arrow Stephen T. Knox
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Stephen T. Knox

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Publications by Stephen T. Knox (bibliography)

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» 1990 «

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Wixon, Dennis, Holtzblatt, Karen and Knox, Stephen T. (1990): Contextual Design: An Emergent View of System Design. In: Carrasco, Jane and Whiteside, John (eds.) Proceedings of the ACM CHI 90 Human Factors in Computing Systems Conference 1990, Seattle, Washington,USA. pp. 329-336.

“We offer an introduction to contextual design as an emergent method for building effective systems. Contextual design addresses a number of the inadequacies in previous methods by emphasizing: interview methods conducted in the context of the user's work, codesigning with the user, building an understanding of work in context, and summarizing conclusions through out the research. We contrast this design method to usability engineering and artifact examination.”

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» 1989 «

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Knox, Stephen T., Bailey, Wayne A. and Lynch, Eugene F. (1989): Directed Dialogue Protocols: Verbal Data for User Interface Design. In: Bice, Ken and Lewis, Clayton H. (eds.) Proceedings of the ACM CHI 89 Human Factors in Computing Systems Conference April 30 - June 4, 1989, Austin, Texas. pp. 283-287.

“The development of an interface design tool called "directed dialogue protocols" is discussed. The tool is based upon Kato's (1986) method of verbal data collection, "question-asking protocols." Three extensions to the question-asking method are detailed: 1) an experimental procedure of atomic tasks which facilitate the quantization of verbal data; 2) interventions by the experimenter that probe the subject's expectations and prompt verbalizations; and 3) a technique for answering subject queries called sequential disclosure. Also discussed are applications of the directed dialogue that have identified design choices which build learnability and usability into a product's user-interface.”

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» 1988 «

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Bailey, Wayne A., Knox, Stephen T. and Lynch, Eugene F. (1988): Effects of Interface Design Upon User Productivity. In: Soloway, Elliot, Frye, Douglas and Sheppard, Sylvia B. (eds.) Proceedings of the ACM CHI 88 Human Factors in Computing Systems Conference June 15-19, 1988, Washington, DC, USA. pp. 207-212.

“Eight subjects experienced in the use of both 7000 and 11000 series oscilloscopes performed four typical tasks with each scope. The 7000 interface is a dedicated physical control system, while the 11000 system employs icons, pop-up menus, assignable controls, and a touch panel. On each trial the task time and measurement accuracy were recorded. Each experimental session was video recorded and verbal protocols were collected. These allowed decomposition of the subjects' behaviors into categories that would account for performance differences between the two scopes. A 77% performance difference is explained in terms of the cognitive factors of strategy selections and recall of operational details.”

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Changes to this page (author)

11 Feb 2010: Enabled abstracts to be shown on Stephen T. Knox's author page.
28 Apr 2003: Added the author to the bibliography

Publication statistics

Publication period:1988-1990
Publication count:3
Number of co-authors:4



Productive colleagues

Stephen T. Knox's 3 most productive colleagues in number of publications:

Dennis Wixon:32
Karen Holtzblatt:16
Wayne A. Bailey:4


Collaboration count

Number of publications with 3 favourite co-authors:

Wayne A. Bailey:2
Eugene F. Lynch:2
Karen Holtzblatt:1

 

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Mar 11

“ My devil's dictionary definition for an Intelligent Agent is a query program with a user interface that is so obscure that you must anthropomorphize it in order to account for its behavior. ”

-- Jaron Lanier ”

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