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Deductive Verification of Distributed Groupware Systems

Abdessamad Imine 1 Pascal Molli 2 Gérald Oster 2 Michaël Rusinowitch 1 
1 CASSIS - Combination of approaches to the security of infinite states systems
FEMTO-ST - Franche-Comté Électronique Mécanique, Thermique et Optique - Sciences et Technologies (UMR 6174), Inria Nancy - Grand Est, LORIA - FM - Department of Formal Methods
2 ECOO - Environment for cooperation
INRIA Lorraine, LORIA - Laboratoire Lorrain de Recherche en Informatique et ses Applications
Abstract : Replication-based distributed systems consist of a group of users manipulating a shared object (like a text document, a filesystem, ...). Operational Transformation (OT) algorithms are applied for achieving convergence in these systems. However, the design of such algorithms is a difficult and error-prone activity, since building the correct operations for maintaining good convergence properties of the local copies requires examining a large number of situations. In this paper, we present the modelling and deductive verification of OT algorithms with algebraic specifications. We show that many OT algorithms in the litterature do no satisfy convergence properties unlike stated by their authors.
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Submitted on : Tuesday, September 26, 2006 - 10:13:05 AM
Last modification on : Friday, January 21, 2022 - 3:08:53 AM


  • HAL Id : inria-00099986, version 1


Abdessamad Imine, Pascal Molli, Gérald Oster, Michaël Rusinowitch. Deductive Verification of Distributed Groupware Systems. Tenth International Conference on Algebraic Methodology and Software Technology - AMAST 2004, 2004, Stirling, Scotland, United Kingdom, pp.226-240. ⟨inria-00099986⟩



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