A framework for a distributed CAD system

Abstract The DIJA project is a web-based CAD system accessible to any user (from neophyte to expert) and from a simple desktop computer. Its modeling approach is based on a top-down methodology and takes into account trade information. In this paper, we propose a network architecture based on a replication process and a multi-level language to manage the consistency between the client model and the server model. The whole CAD system is based on a modular architecture communicating with messages exchanges and provides a general architecture for all trade CAD applications.

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