at Design and Human Factors division. Siw holds a Licentiate of Philosophy degree in Human-Technology-Design from Chalmers. Her research interest relates to how to facilitate interdisciplinary collaborations, specifically involvement of professional users in product development processes in complex sociotechnical systems such as the health care system. Central theme in her research concerns how users' and other stakeholders' specific knowledge of their needs can be elicited by means of representational artefacts, functioning as mediating tools in Co-design processes.