On Behavioural Subtyping in LOTOS

Bowman, Howard and Briscoe-Smith, C. and Derrick, John and Strulo, B. (1997) On Behavioural Subtyping in LOTOS. In: Bowman, Howard and Derrick, John, eds. Proceedings of the IFIP TC6 WG6.1 international workshop on Formal methods for open object-based distributed systems. Chapman and Hall pp. 335-351. ISBN 0-412-82040-4. (Full text available)

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We consider how the OO notion of subtyping relates to LOTOS testing theory. In particular, we investigate which of the standard LOTOS preorders is a suitable instantiation of behavioural subtyping and argue that each of the main preorders, trace preorder, trace extension, reduction and extension, is in some way deficient. Then, in the light of pre and post condition based models of OO subtyping, we re-work the basic interpretation applied to LOTOS behaviour descriptions. We argue that this re-interpretation enables reduction to be used as an instantiation of behavioural subtyping.

Item Type: Conference or workshop item (Paper)
Uncontrolled keywords: Behavioural Subtyping, OO, Process Algebra, Testing Theory
Subjects: Q Science > QA Mathematics (inc Computing science) > QA 76 Software, computer programming,
Divisions: Faculties > Sciences > School of Computing > Theoretical Computing Group
Faculties > Sciences > School of Computing > Systems Architecture Group
Depositing User: Mark Wheadon
Date Deposited: 29 Jul 2009 17:18 UTC
Last Modified: 12 May 2014 14:51 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/21473 (The current URI for this page, for reference purposes)
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