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Abstract
The need for useful clinical support based on integrated computerized systems is now well recognized. To build systems desired by busy clinicians requires accurate specifications. These specifications in turn require rigorous descriptions of the processes to be automated in a form which is understandable and unambiguous to both clinician and computer scientist. Despite these requirements communication between suppliers and users of computer systems often is poor. Detailed descriptions of health care with particular reference to child health were developed with an object-orientated technique. These descriptions take the form of conceptual models of the basic health care activities (evidence collection, assessing, planning and implementing management) and more specific departmental activities pertaining to paediatric intensive care, accident and emergency, and cystic fibrosis management. We have learned that once a modelling team becomes competent in applying the technique, object-orientated modelling can be a powerful tool for the description of complex processes such as those involved in present-day health care.
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