The CLINFO project has defined the most critical information processing needs of clinical investigators as managing and analyzing the research data collected by individual investigators. It has developed a prototype minicomputer-based system to meet these needs and is operating two prototype systems in General Clinical Research Centers where they are being evaluated. The present phase of the project is the iterative design and development of the prototypes, and the collection of detailed information on use at more than one site. If the estimated costs and benefits are reasonable and user acceptance is high, the next phase of the project will be specifying a system for many researchers, and planning commercial development and distribution. This paper discusses the project's techniques for requirements analysis, design, and evaluation, and describes early experiences with users.
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