Perspicuity and Granularity in Refinement

Boiten, Eerke Albert (2011) Perspicuity and Granularity in Refinement. In: Proceedings 15th International Refinement Workshop. (Full text available)

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This paper reconsiders refinements which introduce actions on the concrete level which were not present at the abstract level. It draws a distinction between concrete actions which are ''perspicuous'' at the abstract level, and changes of granularity of actions between different levels of abstraction. The main contribution of this paper is in exploring the relation between these different methods of ''action refinement'', and the basic refinement relation that is used. In particular, it shows how the ''refining skip'' method is incompatible with failures-based refinement relations, and consequently some decisions in designing Event-B refinement are entangled. See

Item Type: Conference or workshop item (Paper)
Uncontrolled keywords: determinacy analysis, Craig interpolants
Subjects: Q Science > QA Mathematics (inc Computing science) > QA 76 Software, computer programming,
Divisions: Faculties > Science Technology and Medical Studies > School of Computing > Programming Languages and Systems Group
Depositing User: Eerke Boiten
Date Deposited: 21 Sep 2012 09:49
Last Modified: 20 Oct 2015 14:18
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