A CONTRACT-EXTENDED PUSH-PULL-CLONE MODEL FOR MULTI-SYNCHRONOUS COLLABORATION - Inria - Institut national de recherche en sciences et technologies du numérique Access content directly
Journal Articles International Journal of Cooperative Information Systems Year : 2012

A CONTRACT-EXTENDED PUSH-PULL-CLONE MODEL FOR MULTI-SYNCHRONOUS COLLABORATION

Hien Thi Thu Truong
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Claudia-Lavinia Ignat

Abstract

In multi-synchronous collaboration users replicate shared data, modify it and redistribute modified versions of this data without the need of a central authority. However, in this model, no usage restriction mechanism was proposed to control what users can do with the data after it has been released to them. In this paper, we extend the multisynchronous collaboration model with contracts that express usage restrictions and that are checked a posteriori by users when they receive the modified data. We propose a merging algorithm that deals not only with changes on data but also with contracts. A log auditing protocol is used to detect users who do not respect contracts and to adjust user trust levels. Our contract-based model was implemented and evaluated by using PeerSim simulator.
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Dates and versions

hal-00761038 , version 1 (04-12-2012)

Identifiers

Cite

Hien Thi Thu Truong, Claudia-Lavinia Ignat, Pascal Molli. A CONTRACT-EXTENDED PUSH-PULL-CLONE MODEL FOR MULTI-SYNCHRONOUS COLLABORATION. International Journal of Cooperative Information Systems, 2012, 21 (3), pp.221-262. ⟨10.1142/S0218843012410031⟩. ⟨hal-00761038⟩
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