As members of a very large enterprise engaged in the production of new technologies, I and my colleagues found ourselves enmeshed in an overwhelmingly complex network of relations, for the most part made up of others we had never met and of whose work we were only dimly aware. Within industrial research the distinctions are primarily disciplinary: computer science, electrical engineering, mathematics, cognitive psychology, linguistics, anthropology all orient not only to different problems but more significantly to different, sometimes incommensurate conceptions of the social/technical world. And as researchers we were all defined in contradistinction to enterprises of product design, development, manufacturing, finance, strategic planning, human resource management, marketing, sales and service, each of which in turn is itself a complex social world comprising distinctive identities, concerns, accountabilities and working practices.