Presents the design and implementation of a deductive object-oriented database which is built upon a formally defined data model that uses two languages: an imperative programming language called ROCK (Rule Object Computation Kernel), and a logic language called ROLL (Rule Object Logic Language). (LRW)

Raison d'Etre, a hypermedia design history application, provides access to a database of video clips containing perspectives of design team members during the course of a project. Describes the user needs analysis; methods of collecting information and organizing the database; and the implications for design education, research, and practice. (AEF)

This paper describes the organization, implementation, and outcomes of a joint effort between the Regional Laboratory for Educational Improvement of the Northeast and Islands and the Vermont State Department of Education's Database Project. In 1987, the Laboratory proposed a feasibility study to examine the means and costs of accessing…

Describes the construction and evaluation of a Web-based learning portfolio of authentic assessment. Discusses the design of the portfolio database; its implementation in a course at National Taipei University of Technology (Taiwan); and student opinions about the impact on the learning process. (Author/LRW)

Describes an approximate document ranking process that uses a compact array of in-memory, low-precision approximations for document length. Combined with another rule for reducing the memory required by partial similarity accumulators, the approximation heuristic allows the ranking of large document collections using less than one byte of memory…

The Comparative Database System (CDS) provides a means for coding and using data on U.S. and international postsecondary educational activity and behavior. CDS permits education-data users to obtain accurate and reliable comparative data on postsecondary education questions. This document contains a discussion of the development of CDS, a detailed…

Discusses applications of Lotus Notes groupware developed by MCI Communications Corporation librarians. The development of administrative databases used for reference request tracking, interlibrary loan, book ordering and other purposes, and corporate wide databases used to disseminate internal and external information are described. The strengths…