With the growth of consumer-faced information systems (IS) applications, IS designers are increasingly moving from seeing their work as ìcapturing and automating requirementsî to seeing it as ìinnovation in product development.î The new metaphor engenders organizational practices targeted at fostering innovation. One such practice is the creation of professionally and organizationally diverse development teams with the goal of creatively combining individual competencies in the resultant product. This paper draws on the longitudinal field study of such a team in order to build a practice-based framework for understanding collaboration on IS development (ISD) projects. The framework depicts ISD as a collective reflection-in-action process that increasingly defines the product. The IS product is the result of participants iteratively challenging each other or following what has been already established on the project. Which action is taken is shaped by the status relations among professionally and organizationally diverse actors.