Abstract
This paper discusses the connection between team mental models (TMM) in creative teams and in operational teams. It focuses on the transition from explorative design activities to exploitative manufacturing activities and discusses the notion of TMM as means and ends to arrive at volume production of the new product. In reaction to the introductory paper four comments are made: (1) a specific transition model should be added, which contains knowledge, abilities and attitudes that are prerequisite to boundary spanning team activities, (2) an external party (e.g. client, user) with a distinct mental model should be included in the research setup, (3) the division of sub-mental models should be conceptualized at a more general level in order to form a base for a coherent ontology of TMM, and (4) we need to be realistic about the value of the notion TMM, as their main purpose is to aid research and communication about research.