Abstract
Traditionally product data and their evolving definitions, have been handled separately from process data and their evolving definitions. There is little or no overlap between these two views of systems even though product and process data arc inextricably linked over the complete software lifecycle from design to production. The integration of product and process models in an unified data model provides the means by which data could be shared across an enterprise throughout the lifecycle, even while that data continues to evolve. In integrating these domains, an object oriented approach to data modelling has been adopted by the CRISTAL (Cooperating Repositories and an Information System for Tracking Assembly Lifecycles) project. The model that has been developed is description-driven in nature in that it captures multiple layers of product and process definitions and it provides object persistence, flexibility, reusability, schema evolution and versioning of data elements. This paper describes the model that has been developed in CRISTAL and how descriptive meta-objects in that model have their persistence handled. It concludes that adopting a description-driven approach to modelling, aligned with a use of suitable object persistence, can lead to an integration of product and process models which is sufficiently flexible to cope with evolving data definitions.
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Estrella, F., Kovacs, Z., Le Goff, J.M., McClatchey, R., Zsenei, M. (1999). Handling Evolving Data Through the Use of a Description Driven Systems Architecture. In: Chen, P.P., Embley, D.W., Kouloumdjian, J., Liddle, S.W., Roddick, J.F. (eds) Advances in Conceptual Modeling. ER 1999. Lecture Notes in Computer Science, vol 1727. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-48054-4_1
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DOI: https://doi.org/10.1007/3-540-48054-4_1
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