An unprecedented amount of information encompassing almost every facet of human activities across the world is generated daily in the form of zeros and ones, and that is often the only form in which such information is recorded. A good fraction of this information needs to be preserved for periods of time ranging from a few years to centuries.…

Discusses how imprecision and uncertainty are dealt with in the UFO (Uncertainty and Fuzziness in an Object-oriented) database model. Such information is expressed by means of possibility distributions, and modeled by means of the proposed concept of "role objects." The role objects model uncertain, tentative information about objects,…

Details the three phases the Jack Brause Library Real Estate Periodical Index (New York University) has gone through since it first went to an electronic format. Discusses beginning the electronic database, issues on electronic storage and use, implementing more user-friendly software, and the transition to the Web. (AEF)