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…

Describes traditional legal information retrieval systems--Juris, Lexis, Westlaw--and several new rule-based, knowledge-based, legal knowledge reasoning, and analytical legal information systems--Waterman and Peterson's Legal Decisionmaking System, Hafner's Legal Information Retrieval System, McCarty's TAXMAN, and the deBessonet representation of…

Examines the "functional sentence perspective" theory, working with the concepts of the "theme" and "rheme" of a sentence, and analyzes possibilities for its implementation in the theory of information systems, particularly with respect to the study of so-called thematic progressions in and general structural formula of the text. (Author/CWM)

Suggests structure based on two sets of principles for deriving meaning from data: Shannon's measure of entropy, which provides means of measuring amount of information in message; and Ranganathan's faceted classification scheme, which provides means of determining number of meaningful data. Syntax, meaning, and semantics of data are discussed.…