Reports on two empirical studies that examined the nature and causes of information management indeterminism in an online research environment. A knowledge-based design for alleviating indeterminism which contains a system-generated thesaurus and an inferencing engine is proposed. (Contains 63 references.) (JLB)

Discussion of a new method of index term dictionary compression in an inverted-file-oriented database highlights a technique of word coding, which generates short fixed-length codes obtained from the index terms themselves by analysis of monogram and bigram statistical distributions. Substantial savings in communication channel utilization are…

This description of the design of an online library acquisition system highlights the use of database management systems in developing information retrieval systems, and software requirements for the hierarchical menu-driven operation. A conceptual view of the database is included. (LRW)

Describes the National Aeronautics and Space Administration (NASA) Lexical Dictionary (NLD), a machine-aided indexing system used online at the NASA Center for AeroSpace Information (CASI). The functions of NLD system components are described in detail, and production and quality benefits resulting from machine-aided indexing at CASI are…

Describes a study that examined whether increased usage of computer based information systems (CBIS) results in improved end-user satisfaction. The results indicate that both the frequency of CBIS use and the proportion of total time spent using CBIS are positively correlated with end-user satisfaction. The implications for designing measures of…

Presents an organizational strategy for effective delivery of required computer technology to management. The nature of the technology is identified, the relationship between technology and information resources management is examined, and the shortcomings of traditional systems approaches are discussed. (24 references) (Author/CLB)

Outlines design requirements for situation description, policy specifications, and decision consequences feedback systems of type that could be used to help manage Research, Development, Test, and Evaluation (RDT&E) portfolios for large organizations. Several systems are described, and three additional systems design characteristics are…

Discusses the design of a model-based management information system in terms of mathematical/statistical, information processing, and human factors issues and presents a prototype system for interlibrary loan networks. (Author/CWM)