Boiten, E.A. and Derrick, J. and Bowman, H. and Steen, M. (1997) Coupling schemas: data refinement and view(point) composition. In: Northern formal methods, 1997; Jul, Ilkley.
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We define the notion of a coupling schema in Z, and describe the role it plays in data refinement, view composition, and viewpoint unification. In each case coupling schemas relate several state schemas. In data refinement they occur as retrieve relations (abstraction schemas). In specification by views, coupling schemas provide a link between the various views. For viewpoint specification, coupling schemas are closely related to correspondence relations between state schemas in the viewpoints. Simple properties of coupling schemas (e.g. totality, functionality, and consistency) are shown to have important consequences in the techniques listed, and to be very useful for exhibiting the relations between these techniques. It turns out that views and viewpoints can both be seen as variations on, or even as generalisations of, data refinement.
|Item Type:||Conference or workshop item (Paper)|
|Uncontrolled keywords:||refinement, Z, views, viewpoints, coupling BCS ; FACS ; formal methods|
|Subjects:||Q Science > QA Mathematics (inc Computing science) > QA 76 Software, computer programming,|
|Divisions:||Faculties > Science Technology and Medical Studies > School of Computing > Theoretical Computing Group
Faculties > Science Technology and Medical Studies > School of Computing > Systems Architecture Group
|Depositing User:||Mark Wheadon|
|Date Deposited:||29 Jul 2009 17:08|
|Last Modified:||29 Jul 2009 17:08|
|Resource URI:||http://kar.kent.ac.uk/id/eprint/21472 (The current URI for this page, for reference purposes)|
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