This conceptual model of a medical information system is such that each module cam be implemented and evaluated as a working part of the system. Each module must be usable and meet administrative and medical needs simultaneously. It must be flexible and easily changed. Its technology must support current practices in health care and should be able to be evaluated readily. The MUMPS programming system was devised to deal with interactive use, test manipulation and a shared data-base. The COSTAR information system uses MUMPS and meets clinical care and administrative purposes at reasonable cost for an acceptable data-base. The system is transferable.Une modble de systkme d'information mCdicale est propos6: dans ce modkle, chaque module peut Ctre implCment6 et consider6 comme une zone de travail sous-optimale du systbme.Chaque module doit &tre accessible et doit pouvoir rCpondre aussi bien aux besoins administratifs qu'aux besoins mCdicaux. Tout module doit pouvoir &tre facilement charge. Sa structure doit lui permettre de manipuler aisCment les donnCes courantes concernant les soins. Le module doit pouvoir &re CvaluC facilement. MUMPS a Ct C pens6 pour une utilisation interactive, la manipulation de chaines de caractkres et les bases de donnCes partagkes.Le systbme COSTAR fait B partir de MUMPS, rCpond aux problkmes mCdicaux et administratifs. I1 donne satisfaction pour une base de donnCes moyenne, et cela i un coat raisonnable. Le systkme COSTAR est transportable.
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