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This paper presents a RAND project concerned with the use of computers as assistants in the logical analysis of large collections of factual data. A system called the Relational Data File was developed for this purpose. The Relational Data File is briefly detailed and problems arising from its implementation are discussed.

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IIASA is not only an institution, it is an idea-the idea that despite differences in economic, politicaC, and social systems, scientists f m m East and West can work together to help resolve the problems that face all mankind In the six years of its existence, the Institute has demonstrated that this once "unmlistic" idea can become a reality. In the years ahead, it must strive, in collaboration with the scientific communities, governments, and industry throughout the worlcl, to bring that idea to its fullest rwlization.