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Conception de services et de protocoles pour la gestion de groupes coopératifs

Abstract : Cooperative work is a domain that studies work of user groups in a general way. Its finality is the design of groupware, software sets that contain tools, applications and platforms for supporting the activities of user groups. The management of these groups and the information exchanges between their members require the definition of new communication services and protocols adapted to the needs of cooperative agents. Work presented inside this dissertation consist in defining, conceiving and managing the structuration of cooperative groups. A model based on graphs has been proposed based on the data sharing to represent the relationships between the different members of a cooperative group. From this model, a service has been defined to manage the entry and exit inside cooperation of the cooperative agents. An underlying communication protocol has been specified using the formal specification language Estelle. The proposed protocol has been verified using the Petri net environment VAL and has been implemented with the C language inside an UNIX environment from the generated Estelle code. An extension of this work allows the formation of private conversation subgroups (PCSs) that are dynamic subgroups created inside cooperations. Another protocol specified in Estelle has been proposed to manage the formation of PCSs and their evolution inside cooperation. In parallel with the group structuration, a study of the data that can be exchanged between cooperative agents has led to the definition of a service that manages data dependencies. This service, specified also in Estelle, allows to create, suppress or modify dependencies between data, and communicates the value changes to the set of dependent data.
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Contributor : Emilie Marchand <>
Submitted on : Tuesday, May 15, 2007 - 10:03:45 AM
Last modification on : Friday, January 10, 2020 - 9:08:08 PM
Long-term archiving on: : Monday, June 27, 2011 - 3:57:55 PM


  • HAL Id : tel-00146528, version 1


Thierry Villemur. Conception de services et de protocoles pour la gestion de groupes coopératifs. Réseaux et télécommunications [cs.NI]. Université Paul Sabatier - Toulouse III, 1995. Français. ⟨tel-00146528⟩



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