Using task analysis for information requirements specification: The SGT method.

Ormerod, Thomas C. and Shepherd, A. (2004) Using task analysis for information requirements specification: The SGT method. In: The Handbook of Task Analysis for Human-Computer Interaction. Lawrence Erlbaum Associates, London. ISBN 0805844325

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Designers increasingly recognise the need for user-centred approaches to system specification, yet the last thing they want is for yet another design method to be imposed upon them. To receive widespread use, task analysis methods must be an integrated and primary part of the design process. This chapter describes the Sub-Goal-Template (SGT) method for producing requirements specifications from task analyses. The SGT method captures a set of information requirements for each user task, and documents the commonalities and differences among tasks and task sequences under constraints of context and limits of performance. Critically, this information is specified in a form that can be used directly by clients and designers as a specification of information requirements, and even as tender and evaluation documents. A brief overview of the SGT approach to hierarchical task analysis is illustrated with an example showing the design of supervisory control systems for a simplified railway network.

Item Type: Contribution in Book/Report/Proceedings
Uncontrolled Keywords: /dk/atira/pure/researchoutput/libraryofcongress/bf
Departments: Faculty of Science and Technology > Psychology
ID Code: 10126
Deposited By: Prof Tom Ormerod
Deposited On: 07 Jul 2008 13:07
Refereed?: No
Published?: Published
Last Modified: 05 Dec 2019 01:02

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