Search (209 results, page 1 of 11)

  • × language_ss:"e"
  • × theme_ss:"OPAC"
  • × year_i:[1990 TO 2000}
  1. Salmon, S.R.: ¬The MELVYL system and its academic context (1992) 0.08
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  2. Wset, R.: ¬The MELVYL system in the larger context of the University of California's information technology planning (1992) 0.07
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  3. Kinnucan, M.T.: Fisheye views as an aid to subject access in online catalogues (1992) 0.07
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    Abstract
    There are many problems with subject access in online catalogues. One of the major problems is information overload. One kind of this occurs when the display consists of a lengthy segment of the subject index in which a single subject heading is followed by a bewildering array of subdivisons, qualifications and phrases. This problem can be alleviated by presenting the subject index in a summary form that the user can expand to provide more detail as appropriate. Such an approach could be realized within the context of a direct manipulation style of user interface. In particular, a manner of displaying information called 'fisheye views' could be applied to the subject index display
  4. Berger, M.G.: ¬The MELVYL system : the next five years and beyond (1992) 0.06
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    Abstract
    Planning for the next five years of the MELVYL system is described in the context of University of California information system planning. The palnning environment is outlined from which are derived the objectives for the continued growth of the MELVYL system. The technical evolution of the MELVYL system necessary to meet the objectives is also reviewed. Envisioned in this technical evolution is the conversion of the MELVYL system to a client/server architecture that includes a graphical interface. Future plans for the MELVYL system provide a basis for tackling the problems of fragmented databases and information overload. Four initiatives to alleviate these problems are briefly described
  5. Larson, R.R.: ¬The decline of subject searching : long-term trends and patterns of index use in an online catalog (1991) 0.05
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    Abstract
    Search index usage in a large university online catalog system over a six-year period (representing about 15,3 million searches) was investigated using transaction monitor data. Mathematical models of trends and patterns in the data were developed and tested using regression techniques. The results of the analyses show a consistent decline in the frequency of subject index use by online catalog users, with a corresponding increase in the frequency of title keyword searching. Significant annual patterns in index usage were also identified. Analysis of the transaction data, and related previous studies of online catalog users, suggest a number of factors contributing to the decline in subject search frequency. Chief among these factors are user difficulties in formulating subject queries with LCSH, leading to search failure, and the problem of "information overload" as database size increases. This article presents the models and results of the transaction log analysis, discusses the underlying problems with subject searching contributing to the observed decline, and reviews some proposed improvements to online catalog systems to aid in overcoming these problems
  6. Wallace, P.M.: Periodical title searching in online catalogues (1997) 0.05
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    Abstract
    Reports on a dramatic shift from subject to periodical title searching at Colorado University Libraries. States possible reasons for the change, examines problems encountered by users with searching the periodical title index and suggests how this change in online catalogue searching may affect future catalogue design and bibliographic instruction
    Date
    29. 7.1998 10:57:22
  7. Troutman, L.: ¬The online public access catalog and music materials : issues for system and interface design (1992) 0.05
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    Abstract
    Discusses the retrieval of music materials within the context of OPACs, the characteristics of the music collection. Considers system and interface requirements and the problems attendant upon known item searching in an area where multiple manifestations of a single work are the norm. Covers: indexing and searching; Boolean searching capabilities; and the user-system dialogue, displays, and user assistance text. Describes the specific case of ILLINET Online statewide OPAC for Illinois and the music subsystem of the OPAC
  8. Cross, A.: ¬The OPAC and community information (1997) 0.04
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    Abstract
    Hertfordshire Libraries, Arts & Information, UK, has made its library catalogue and a community information resource of over 10.000 items available on the WWW through the ALS InfoCentre system. It is currently discussing establishing a managed service for the WWW server in order to maintain a fresh presence on the Web and to sell Web space to recoup investment
    Source
    Catalogue and index. 1997, no.124, S.6-7
  9. Hancock-Beaulieu, M.; Fieldhouse, M.; Do, T.: ¬A graphical interface for OKAPI : the design and evaluation of an online catalogue system with direct manipulation interaction for subject access (1994) 0.04
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    Abstract
    A project to design a graphical user interface for the OKAPI online catalogue search system which uses the basic term weighting probabilistic search engine. Presents a research context of the project with a discussion of interface and functionality issues relating to the design of OPACs. Describes the design methodology and evaluation methodology. Presents the preliminary results of the field trial evaluation. Considers problems encountered in the field trial and discusses contributory factors to the effectiveness of interactive query expansion. Highlights the tension between usability and functionality in highly interactive retrieval and suggests further areas of research
  10. Hug, H.; Nöthiger, R.: Ethics (ETH library information control system) (1992) 0.04
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    Abstract
    Paper presented at the 14th biennal conference of IATUL, Cambridge, Mass., USA, 8-12.7.1991: new technologies and information services - evolution or revolution? Ed. by Jay K. Lucker and published by the British Library on behalf of the IATUL. The ETH-Bibliothek is the main library of the Swiss Federal Institute of Technology and the national centre for scientific and technical literature. Mostly there is no open access for the public. The ETHICS project was initiated to run library applications on the the library's own computer. The project is conceived as a multi-library integrated system whose separate units interrelate via a central database. The main function of the system is the online public access catalogue. Describes the specifications of ETHICS including interactive communication in German and French for storing and retrieving data. The subject index is maintained in French, German and English. Discusses retrieval by title words, subject retrieval and alphabetic retrieval. Outlines future developments
  11. Ensor, P.: User characteristics of keyword searching in an OPAC (1992) 0.04
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    Abstract
    Keyword and Boolean searching modes are now becoming more commonly available on OPACs, and questions have arisen regarding their use by library patrons. Which patrons use keyword searching, and which do not? This study attempts to begin providing answers to this question in the context of an academic library that uses Northwestern Online Total Integrated System (NOTIS) online catalog
  12. Ensor, P.: User practices in keyword and Boolean searching on an online public access catalog (1992) 0.04
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    Abstract
    Keyword and Boolean searching modes are now becoming more commonly available on online public access catalogs, and questions have arisen regarding their use by library patrons. How difficult do users perceive these searches to be? Do those who use them tend to rely on them all the time to the exclusion of all other methods? This study attempts to provide answers to these questions in the context of an academic library that uses the Northwestern Online Total Integrated System Online catalog
  13. Hancock-Beaulieu, M.; Robertson, S.; Neilson, C.: Evaluation of online catalogues : eliciting information from the user (1991) 0.04
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    Abstract
    An investigation of tools, techniques, and methods for the evaluation of interactive library catalogues is described, with emphasis on diagnostic methods and on use of the catalogue in a wider context of user information seeking behaviour. A front-end system (Olive) was developed to test verious enhancements of traditional transaction logging as a data-gathering technique for evaluation purposes. These include full-screen logging, pre- and post-search, online/offline, and in-search interactive questionnaires, search replys as well as talk-aloud. The extent of subject or hybrid searching activity as opposed to specific item searching is also highlighted
  14. Solomon, P.: Access to fiction for children : a user-based assessment of options and opportunities (1997) 0.04
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    Abstract
    Reports on a study of children's intentions, purposes, search terms, strategies, successes and breakdowns in accessing fiction. Data was gathered using naturalistic methods of persistent, intensive observation and questioning with children in several school library media centres in the USA, including 997 OPAC transactions. Analyzes the data and highlights aspects of the broader context of the system which may help in development of mechanisms for electronic access
  15. Seruga, J.: Object-oriented modeling of a library information system (1997) 0.03
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    Abstract
    Analyses the OPAC at the Australian Catholic University in New South Wales, Castle Hill Campus using an object oriented model following Rumbaugh's methodology, as described in 'Object oriented modelling and design, 1991'. The process of analysis, although difficult, is one of the most effective ways of determining each function of a system of this kind. The methodology is especially useful as the data structure, behavioural and functional aspects of the system are displayed in separate diagrams. This is an advantage for those analysing systems, who can display many factors without confusing different aspects involved in the analysis process
    Source
    LASIE. 28(1997) no.4, S.22-34
  16. Cole, T.W.: Design and development of a library information workstation (1993) 0.03
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    Abstract
    Describes the design and continuing development of the University of Illinois at Urbana-Champaign Library Information Workstation, which provides the primary, in-library user acces to ILLINET Online Plus, the library's extended OPAC system. Briefly describes the automated library information resources and information processing environment as they have influenced the design and development of the Library Information Workstation. Discusses its philosophy and approach in the context of relevant information access issues and user needs and requirements. Features of the current Library Information Workstation implementation are then described using illustrations focused particularly on integrated access to local (resident on individual workstations) information fields and an integrated end user interface for bibliographic database searching. Ongoing development plans also are discussed briefly
  17. Park, I.: ¬A comparative study of major OPACs in selected academic libraries for developing countries : user study and subjective user evaluation (1997) 0.03
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    Abstract
    Provides information on the characteristics of 5 online catalogue systems in 5 academic libraries in the austin, Texas and North Texas, USA, and their use by Korean students at University of North Texas, USA, in order to assist system managers in the selection of online catalogues. Proposes recommendations when designing, adopting, or managing a new online catalogue system. Topics for further studies on the characteristics of online systems and their use are also suggested
    Source
    International information and library review. 29(1997) no.1, S.67-83
  18. Advances in online public access catalogs : Vol.1 (1992) 0.03
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    Content
    Enthält die Beiträge: Pt.1: USER INTERFACES: HULSER, R.P.: Overview of graphical user interfaces; TROUTMA, L.: The online public access catalog and music materials: issues for system and interface design; MISCHO, W.H. u. T.W. COLE: The Illinois extended OPAC: library information workstation design and development; BALLARD, T. u. J. SMITH: The human interface: an ongoing study of OPAC usage at Adelphi University; Pt.2: ENHANCING THE TRADITIONAL CATALOG RECORD: WITTENBACH; S.A.: Building a better mousetrap: enhanced cataloging and access for the online catalog; BEATTY, S.: Subject enrichment using contents or index terms: the Australian Defence Force Academy experience; Enhancing USMARC records with table of contents (MARBI discussion paper; no.46); Pt.3: REDEFINING THE SCOPE OF THE OPAC AND MOVING BEYOND THE LIBRARY WALLS: TROLL, D.A.: The Mercury Project: meeting the expectations of electronc library patrons; JAMIESON, R.C.: Oriental language materials in online public access catalogues; JUZNIC, P. u. H. PAAR: Cooperative cataloguing in Yugoslavia and the development of the OPAC; PERRY, A.: The PACLink Project at the State University of New York: leveraging collections for the future
  19. Nuttall, H.D.; McAbee, S.L.: Pathfinders on-line : adding pathfinders to a NOTIS on-line system (1997) 0.03
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    Abstract
    For decades print pathfinders have complemented card catalogues and been useful reference tools. They are overlooked as components of online catalogues, even though they can extend the depth of the catalogue. To encourage librarians to consider integrating pathfinders into online catalogues discusses problems in OPAC searching, describes the value and styles of pathfinders, and illustrates how to include them in a NOTIS system
    Date
    27.11.1995 17:07:22
  20. Fellows, G.; Tsang, P.: ¬A common interface for remote access on online library catalogues (1993) 0.03
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    Abstract
    Examines the problems that users have remotely accessing libraries' online catalogue system in Australia and around the world using Telnet. Examines the frustrations users have experienced in dealing with the various commands they need to use when searching from one library to another
    Date
    20.10.2000 13:29:02

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