Reference models of product data management systems

The small and midsize companies are under pressure of non-stop costs reduction. Applying of product data integration could significantly improve the companies competitiveness [Pas 96]. Most companies call riot effort big investments into information systems and the employees do not have necessary knowledge. We have prepared reference models for PDM systems in a mechanical engineering, which help to define actual needs inside the enterprise. We are concentrated, first of all, into development/design phase. The models are the results of applying PDM system into different enterprises. The connections between Reference models and Models of integration are shown, which make AN overview on the information system from the organisation point of view.