The integration and evolution of existing systems represents one of the most urgent problems facing those responsible for healthcare information systems so that the needs of the whole organisation are addressed. The management of the healthcare record represents one of the major requirements in the overall process, however it is also necessary to ensure that the healthcare record and other healthcare information is integrated within the context of an overall healthcare information system. The CEN ENV 12967-1 'Healthcare Information Systems Architecture' standard defines a holistic architectural approach where the various, organisational, clinical, administrative and managerial requirements co-exist and cooperate, relying on a common heritage of information and services. This paper reviews the middleware-based approach adopted by CEN ENV 12967-1 and the specialisation necessary for the healthcare record based on CEN ENV 12265 'Electronic Healthcare Record Architecture'.