Product models come from the analysis of the data requirements to support the design and manufacture of products. These models are implemented in databases aimed at providing information to software applications that assist the concurrent design of products.

This paper presents the requirements of a data model driven software system to aid the design of injection moulds and analyses two product models which were developed in different contexts but capable of representing injection moulded parts and moulds. A case study is used to show the application of each one of the models selected. Finally, some conclusions of the analysis are drawn in order to set the foundation of a new model.

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