The PEN&PAD (Geriatrics) project seeks to develop a Collaborative Patient Record System for the hospital based shared care of the elderly. The goal of the project is to produce a single, integrated information system which is both useful and usable by the different practitioner groups involved in geriatric care. A User Centred Design methodology is proposed which makes users and human issues central to the design and development process. Preliminary results indicate that the specification of a Minimum Basic Data Set as the basis of a shared record system is infeasible and undesirable. An architecture is presented which illustrates how the diversity between the different disciplines may be preserved in a Collaborative Patient Record System.