In this paper we describe the use of a Project Support Environment (PSE) services reference model as an analysis technique that helps in describing, understanding, and comparing aspects of integration in a PSE. The model is briefly described, before being used as the basis for discussing a number of issues with regard to PSE integration. A major focus of this paper is a discussion of the interfaces of interest in a PSE—interfaces within a single service, between services, and between services and the PSE end-users.

The paper concludes with a discussion of possible interpretations and developments of the model to suit different user requirements.

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