Précédent : Références Remonter : PROJET RESEDAS

Abstract

In 1996, the RESEDAS project had 2 main goals: one concerned with improving methods and tools for the development of TMN (Telecommunications Management Network) information models and applications; one for providing new facilities in the area of distributed computing over heterogeneous networks.

The first goal resulted in the provision of two software tools and several theoretical studies. The studies have been made on the adequacy of formal methods for the specification and validation of information models and encouraging results have been obtained. These studies have also contributed to the development of the MODERES environment which provides tools helping the TMN information model designer to produce more precise and complete information models using both GDMO and GRM notations. MODERES is freely available on the Web.A first prototype of GRM-based management application was developped in the SP_KIT platform.

The second goal resulted in studies and tools concerning the use of the message-passing paradigm. We first studied in depth the performance of the libraries showing the limits due to the communication overhead. Then we have developped a formalism and its compiler, MeDLey, for the specification of the messages giving the possibility to a user to split easily the communication and control parts of a networked computation and to manage the adequation between the exchanged messages and the local data. We have also developped a C++ interface providing a unique programming interface and thus a first abstraction level, to all underlying message-passing interfaces such as PVM and MPI. This interface is successfully distributed on the Web.