Software Configuration Management (SCM) is the discipline of controlling the evolution of a software product. Product Data Management (PDM) is the disciple of designing and controlling the evolution of a product design. For a long time, these two domains have been disconnected, but they probably share common concepts and techniques. Furthermore, any large product development includes a substantial (and growing) part of software development. There is a need to control the evolution of both the product and its associated software. Thus we are faced with the question: are the involved concepts and techniques close enough to envision a common tool capable of supporting both domains. This paper tries to answer this question, through an analysis of the PDM standard STEP and tools characteristic of both domains: Metaphase for PDM; Clear Case and Adele for SCM. "Those who know only England do not know England" (Rudyard Kipling). This paper is written by SCM experts, not PDM ones, and...