ATIM is an Accompanying Measure under the AIM programme which aims at developing consensus on methods and criteria for assessment of Information Technologies applied in health care and at the application of these methods in two AIM project lines: (a) Knowledge Based and Decision Support Systems and (b) Medical Multimedia Workstations and Images. ATIM builds on, and coordinates assessments and evaluations which are planned in current AIM projects. It consists of workshops, meetings and the coordination of assessments in the two project lines. Networking is an essential element. The main goal of ATIM is to demonstrate the value of assessment to the various actors in this field. One of the end-products of ATIM will be a handbook on how to assess information technologies in medicine, with practical examples from AIM projects.