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Model Based Engineering of Specifications by Retrenching Partial Requirements

Banach, Richard and Poppleton, Michael, (2001) Model Based Engineering of Specifications by Retrenching Partial Requirements Menzies, Tim (ed.) At IEEE Model Based Requirements Engineering Workshop.

Record type: Conference or Workshop Item (Paper)


In conventional model­oriented formal refinement, the abstract model is supposed to capture all the properties of interest in the system, in an as­ clutter-­free­ as ­possible a manner. Subsequently, the refinement process guides development inexorably towards a faithful implementa­tion. However refinement says nothing about how to obtain the abstract model in the first place. In reality developers experiment with prototype models and their refinements until a workable arrangement is discovered. Retrenchment is a formal technique intended to capture some of the informal approach to a refinable abstract model in a formal manner that will integrate with refine­ment. This is in order that the benefits of a formal ap­proach can migrate further up the development hierarchy. After a presentation of the basic ideas of retrenchment, a simple telephone system feature interaction case study is given to illustrate how retrenchment can relate incompati­ble partial models to a more definitive consolidated model during the development of the contracted specification.

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Published date: 2001
Additional Information: Event Dates: November 2001
Venue - Dates: IEEE Model Based Requirements Engineering Workshop, 2001-11-01
Keywords: model-based requirements retrenchment refinement
Organisations: Electronic & Software Systems


Local EPrints ID: 259075
PURE UUID: be67abea-c92f-4767-849b-3f0aebdeab51

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Date deposited: 29 Apr 2005
Last modified: 18 Jul 2017 09:26

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Author: Richard Banach
Author: Michael Poppleton
Editor: Tim Menzies

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