Describes information architecture as a high-level map of the information requirements of a corporation that can be used as a base for developing effective information systems. Methodologies for development, problems involved, and benefits are discussed, several examples are cited, and prescriptive recommendations are given. (Author/LRW)

Considers two aspects of design and performance evaluation of information systems: initiation, planning, development, and testing of new systems, to include modification of existing structures; and appraisals and measurement of operational systems and components. A taxonomy of information systems provides a basis for organized evaluation of system…

This paper is concerned with the organization and retrieval of records in document retrieval systems which admit of imprecision in the form of fuzziness in document characterization and retrieval rules. A mathematical model for such systems, based on the theory of fuzzy sets, is introduced. (Author)

The problem of modeling information systems is studied with a focus on predictability. Syntactic, semantic, and pragmatic criteria are discussed, and 11 references are cited. (Author/BK)

Reports on an evaluation of the construction of selective dissemination of information profiles for the International Nuclear Information System (INIS) in South Africa. (PF)

Includes a report on a use study of the Excerpta Medica system. (PF)

Identifies requirements for representing structural aspects of nonconventional information system applications and demonstrates how recursive data models support information systems better than record-based database modelling tools. Structural concepts for representing office data objects are discussed and applied to an office example. Language…

Proposes and explains a new mechanism for controlling the access requests in information protection systems that is based on Newton's interpolating polynomial. Access control matrices are discussed; single-key-lock systems are described; relevant algorithms are explained; and an example of the new mechanism is included. (10 references) (LRW)

Discussion of providing access to needed information focuses on five historical schemes that represent speculative approaches to solving the problem of restructuring and mobilizing the content of documents. The collection, analysis, and restructuring of information already available in some other form and the need for an information professional…

False drops occur in a system of random superimposed coding for edge-notched, punched, and feature cards. Formulae for the false dropping fraction are derived, and figures and tables are given for the calculated values in the most popular scheme. (Author/LS)

This 440-item annotated bibliography presents a highly selected list of documents which focus on information theory applications to information science, information processing, or information systems analysis and design. The bibliography is arranged alphabetically by author and a subject/keyword index is provided.

The parameters of effectiveness evaluation of information systems put forward in this paper take account of the fact that both evaluation of the relevance and evaluation of the pertinence of documents are of a continuous character. (Author)

A survey is given of the potential role of artificial intelligence in retrieval systems. The paper concludes with an outline of areas for further research on artificial intelligence in information retrieval systems. (Author)

Examines early and current approaches to automatic thesaurus construction and describes an approach to automatic generation of global thesauri based on the term discrimination value model and on an appropriate clustering algorithm. Preliminary results of implementation of the method are reported. (46 references) (Author/MES)