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Multiparty Testing Preorders

De Nicola, Rocco and Melgratti, Hernán Multiparty Testing Preorders. In: Trustworthy Global Computing. 0th International Symposium, TGC 2015 Madrid, Spain, August 31 – September 1, 2015 Revised Selected Papers. Lecture Notes in Computer Science (9533). Springer International Publishing, Cham, pp. 16-31. ISBN 978-3-319-28766-9 (2016)

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Variants of the must testing approach have been successfully applied in Service Oriented Computing for analysing the compliance between (contracts exposed by) clients and servers or, more generally, between two peers. It has however been argued that multiparty scenarios call for more permissive notions of compliance because partners usually do not have full coordination capabilities. We propose two new testing preorders, which are obtained by restricting the set of potential observers. For the first preorder, called uncoordinated, we allow only sets of parallel observers that use different parts of the interface of a given service and have no possibility of intercommunication. For the second preorder, that we call independent, we instead rely on parallel observers that perceive as silent all the actions that are not in the interface of interest. We have that the uncoordinated preorder is coarser than the classical must testing preorder and finer than the independent one. We also provide a characterisation in terms of decorated traces for both preorders: the uncoordinated preorder is defined in terms of must-sets and Mazurkiewicz traces while the independent one is described in terms of must-sets and classes of filtered traces that only contain designated visible actions.

Item Type: Book Section
Identification Number: 10.1007/978-3-319-28766-9_2
Additional Information: SCOPUS ID: 2-s2.0-84955302044
Subjects: Q Science > QA Mathematics > QA75 Electronic computers. Computer science
Research Area: Computer Science and Applications
Depositing User: Caterina Tangheroni
Date Deposited: 06 Oct 2016 09:14
Last Modified: 06 Oct 2016 09:16
URI: http://eprints.imtlucca.it/id/eprint/3560

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