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Content archived on 2024-05-14

Perdis: a persistent distributed store for co-operative applications

Objective

Objectives and expected results:
- To feed requirements for interactive CE applications into the design of the Platform.
- To design a novel, efficient, convenient, PDS Platform based on rigorously-proven algorithms, which is language-independent and portable; to develop, use, assess and disseminate the PerDiS Platform.
- To consolidate and refine the partners' research in coherent replication, garbage collection, fault tolerance and security.
- To implement interactive tools for CE using the SDAI standard, supporting the Virtual Enterprise model.
- To measure the behaviour of CE applications; to evaluate and improve performance on the basis of these measurements. The major output from the project is the PerDiS Platform, a PDS that will be designed, developed, integrated, used, demonstrated, evaluated and assessed in common by the partners. The results will be delivered in three yearly stages. Versions of the Platform are made available to outside users at Months 12 and 36.

Industrial relevance of the results

The project will disseminate to industry advanced research results, in the form of a platform that manages shared objects for C++ and runs cooperative applications that can interwork via the SDAI (STEP Standard Data Access Interface) standard, implemented within the project. Its effectiveness will be demonstrated by a set of CAD tools running over SDAI, to be used by architects and engineers in the construction industry. The use of such tools will make production more effective and improve the competitiveness of European industry.

The industrial partners will provide a test site, where the PerDiS applications will be used for real projects, demonstrating to the IT industry the potential for application in similar fields of engineering.

Our industrial sponsors (Bull, Chorus Systemes, DEC and Iona) will form a Steering Committee, and are invited to the annual project workshops to have early visibility of results and to make recommendations.

The primary goal of PerDiS is to deliver, use, demonstrate, and assess a distributed Platform for the sharing of data, in support of interactive Concurrent Engineering (CE) applications in a Virtual Enterprise. The PerDiS Platform deploys a novel technology for the distributed sharing of information: a Persistent Distributed Store (PDS), which provides a shared memory abstraction.

The shared-memory model is familiar, and places minimal constraints on the application programmer. In contrast to the alternatives (such as client-server systems, distributed file systems, OODBs or the World-Wide Web), applications above the PerDiS PDS deal only with memory, using a single, unobtrusive API, relieving the application programmer from the burdens of remote access, memory management and input-output. This facilitates the migration of existing programs. The Platform caches data for performance; uses replication and checkpointing for fault tolerance; and provides security mechanisms. Optimistic techniques support long, possibly conflicting transactions, tentative computation and disconnected operation.

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Programme(s)

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Topic(s)

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Call for proposal

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Funding Scheme

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CSC - Cost-sharing contracts

Coordinator

INSTITUT NATIONAL DE RECHERCHE EN INFORMATIQUE ET EN AUTOMATIQUE
EU contribution
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Address
DOMAINE DE VOLUCEAU
78153 LE CHESNAY
France

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Total cost

The total costs incurred by this organisation to participate in the project, including direct and indirect costs. This amount is a subset of the overall project budget.

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Participants (4)

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