Technology Assessment processes can be taken as a paradigm for interdisciplinary research. It is expected that interdisciplinary Technology Assessment is able to find solutions for actual sociopolitical problems that go beyond those expected from one individual scientific discipline alone. The common notion, that for tasks like this different disciplinary perspectives should be brought together, confronts the fact that there is no common notion on how interdisciplinary research should be done. In the present volume European experts of Technology Assessment present their perspectives on interdisciplinary research. Many focus on methodology, policy consulting, and participation of stakeholders, non—experts and citizens. Others present concrete case studies concerning climate change and health care. Each contribution is commented by an other scientist. The result is a discussion—like examination of the connection between interdisciplinarity and the main subjects of Technology Assesment.