This paper presents methods, models and tools which are of relevance for the administration and operation of product-related content during the development of complex products. The central method presented in this paper is a handling method including a product data model and a process model as a tool and as well as a method, respectively, for analysing the interactions of the actors of a product development project. The effects which could be achieved by using the presented methods, models and tools are higher efficiency and speed of the development of complex products as a result. Thus, positive effects on these important factors determining a company's success are aimed at
