Engineering design is fundamentally social, requiring a lot of interaction and communication between the people involved. Additionally, good design often relies upon the ability of a cross-functional team to create a shared understanding of the task, the process and the respective roles of its members. The negotiation and bargaining for common ground are essential in the design process. It is important to provide tools and methods so that also geographically distributed design teams are given the opportunity to engage in such social interactions. This paper presents a study of interpersonal communication within the Distributed Team Innovation (DTI) framework; a joint product design project between Luleå University of Technology and Stanford...