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  • × theme_ss:"OPAC"
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  1. Micco, M.: ¬A graphical user interface to support navigation through large data spaces : the next generation of OPACs (1990) 0.00 
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    Imprint
    Medford, NJ : Learned Information
  2. Twidale, M.; Nichols, D.: Collaborative browsing and visualization of the search process (1996) 0.00 
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    Abstract
    Information retrieval systems such as library OPACs have been largely designed to give the impression of being single user systems, the existence and activity of other users being hidden from each other. However, informal observations indicate significant collaboration between users despite the fact that existing systems fail to support this. Describes the development of an interface, the Ariadne system, that supports collaboration through the storage and re-use of others' search processes promoting better visualization of the information data structures being browsed and more effective means of communicating the browsing process. Discusses issues relating to privacy and ownership resulting from the storage of users' searches. Argues that introducing support for collaboration into information retrieval systems would help users to learn and use the systems more effectively
    Footnote
    Paper presented at ELVIRA'96: 3rd International Conference on Electronic Library and Visual Information Research, Milton Keynes, UK, 30 April - 2 May 1996
  3. Hancock-Beaulieu, M.: OPACs (1993) 0.00 
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    Abstract
    Reports on the state-of-the art of online catalogues and considers propects for future developments. Describes the background and origins of OPACs. Considers the limitations of second generation systems which are failing to meet the needs of users. Examines new approaches to their design which include: user-centre design, interface design, use of advanced retrieval techniques, and their use in the network environment. Considers future developments of OPACs taking into account developments in other electronic information sources
    Source
    Information UK outlooks. 1993, H.4, S.3-11
  4. Pejtersen, A.M.: ¬A framework for indexing and representation of information based on work domain analysis : a fiction classification example (1994) 0.00 
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    Abstract
    Information retrieval and exploration of work domains through databases and integrated information systems has become increasingly important in many modern work settings (as well as in libraries). The problem space of the users is defined on occasion by the dynamically changing requirements from their tasks and goals. it is argued that IR system design should be based on an analysis of the properties of the work domain, the task situation and the user characteristics. The paper describes a general framework for IR system design that has been used in the design of a library system. A special problem identified from use of the framework in domain analysis of fiction retrieval is treated in more detail: mapping the authors' domain structures to the domain structures expressed in users' needs in indexing and representation of fiction
  5. Grant, W.C.; Jones, D.E.: ¬The three T's for a talking online catalog : technology, teamwork, teaching (1993) 0.00 
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    Source
    Information technology and libraries. 12(1993) no.2, S.193-202
  6. Pejtersen, A.M.: ¬A new approach to design of document retrieval and indexing systems for OPAC users (1993) 0.00 
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    Abstract
    This paper describes a new OPAC system called The Book House and discusses its relevance as a solution to current OPAC developments. The Book House is an interactive, multimedia, online public access catalogue system designed to support casual and/or novice end-users in information retrieval. It runs on a Macintosh and is available on CD-ROM and disks in English and Danish (it can be purchased from Risø for $100). It comprises an interface and module for classifying and indexing fact and fiction books in the database called Book House Write. It uses icons, text and animation in the display interface in order to enhance the utility of the system for the general public. Both words and pictures can be used for searching, which makes the system suitable for all age groups. It plays on users' previous experiencees with computer games to support learning by doing something in an enjoyable way. A prerequisite for the design of The Book House was a new approach to cognitive analysis of retrieval in libraries. Based on the success of this approach, it is claimed that OPAC systems will only be really useful and widespread (1) when their domain and task characteristics allow supplementary information to be added to existing descriptions of book content in online card catalogues in order to match end-users' intentions and needs, and (2) when the user interface and routes to the databases are configured as an integrated and uniform set of displays which match the search strategies of users, as well as their mental capabilities and limitations
    Imprint
    Oxford : Learned Information
    Source
    Online information 93: 17th International Online Meeting Proceedings, London, 7.-9.12.1993. Ed. by D.I. Raitt et al
  7. ¬A graphical user interface : the case of the British Library network OPAC (1996) 0.00 
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    Abstract
    Presents the selected findings of a research project based on the British Library Network Online Public Access Catalogue (NOPAC) carried out in the department of information and library management at the University of Northumbria in Newcastle, UK over the academic year 1994/95. Data was collected by means of interviews with NOPAC users especially on use made of the NOPAC and on attitudes towards the NOPAC's interface. Discusses the views of users as they relate to: display features; mode of interaction; help/user assistance; extra features available; and usability. Lists important points which emerged from the survey concerning the NOPAC service
    Source
    Managing information. 3(1996) no.1, S.34-37
  8. Pejtersen, A.M.: New model for multimedia interface to online public access catalogues (1992) 0.00 
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    Abstract
    The Book House is an interactive, multimedia, online public access catalogue designed to support casual, novice users in information retrieval. It uses icons, text and animation in the display interface in order to enhance the utility of the system. A prerequisite for the design of The Book House was a cognitive analysis of users' information needs and search queries. The paper describes The BookHouse and discusses its relevance as a solution to the current OPAC developments
  9. Allen, B.: Improved browsable displays : an experimental test (1993) 0.00 
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    Abstract
    Browse searching of online catalogs and electronic indexes is a popular means of retrieving information, but some subject heading lists are so extensive that browsing them can be difficult and time-consuming. This resaerch tested one way of presenting a browse interface to reduce the amount of scanning of subject headings required. It found that a hierarchical presentation of headings reduced the amount of scanning required by more than 50% without any reduction in the effectiveness of the search. Better browsable displays of this sort can improve the efficiency of searching but appear not to alter effectivenenss
    Source
    Information technology and libraries. 12(1993) no.2, S.203-208
  10. Hjerppe, R.: Database visualisation : asking 'what do you have?' instead of 'what do you want?' (1992) 0.00 
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    Abstract
    The very nature of traditional interfaces to databases tend to hide their information content and makes it very difficult for a user to build a conceptual model of their contents. Traditional libraries, however, are designed to make their contents and their arrangements clearly visible and capable of browsing. Describes a small demonstration system aimed at making the contents of an OPAC capable of being visualised by users and designed as part of the HYPERCATalog effort
    Source
    Technology and competence. Proc. of the 8th Nordic Conference on Information and Documentation, Helsingborg, 19.-21.5.1992. Ed. by Karin Adler et al
  11. Beaulieu, M.; Jones, S.: Interactive searching and interface issues in the Okapi best match probabilistic retrieval system (1998) 0.00 
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    Abstract
    Explores interface design raised by the development and evaluation of Okapi, a highly interactive information retrieval system based on a probabilistic retrieval model with relevance feedback. It uses terms frequency weighting functions to display retrieved items in a best match ranked order; it can also find additional items similar to those marked as relevant by the searcher. Compares the effectiveness of automatic and interactive query expansion in different user interface environments. focuses on the nature of interaction in information retrieval and the interrelationship between functional visibility, the user's cognitive loading and the balance of control between user and system
  12. Breeding, M.: ¬The birth of a new generation of library interfaces (2007) 0.00 
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    Abstract
    Over the last couple of years, there has been a surge of activity in the library automation arena directed toward improved user interfaces. As Breeding looks at the events and activities that have transpired over the last year or so, Breeding sees an incredible amount of progress in creating interfaces that help librarians compete better in an ever more crowded landscape of information providers. It's strategically important for libraries to have technologies in place that will optimize delivery of content and services in the context of today's Web. Breeding believes that failure to make progress in this area can foster a creep of irrelevancy as potential users increasingly rely on information resources provided by entities other than libraries.
  13. Mi, J.; Weng, C.: Revitalizing the library OPAC : interface, searching and display challenges (2008) 0.00 
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    Abstract
    The behavior of academic library users has drastically changed in recent years. Internet search engines have become the preferred tool over the library online public access catalog (OPAC) for finding information. Libraries are losing ground to online search engines. In this paper, two aspects of OPAC use are studied: (1) the current OPAC interface and searching capabilities, and (2) the OPAC bibliographic display. The purpose of the study is to find answers to the following questions: Why is the current OPAC ineffective? What can libraries and librarians do to deliver an OPAC that is as good as search engines to better serve our users? Revitalizing the library OPAC is one of the pressing issues that has to be accomplished.
    Source
    Information technology and libraries. 27(2008) no.1, S.5-19
  14. Kinney, T.; Pasak, P.: ¬The 'naive subject searcher' model : a tool for evaluating library catalog user interfaces (1990) 0.00 
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    Abstract
    Presents a chart comparing the subject access features available on 4 different catalogues (card catalogues, GEAC, MELVYL and NOTIS) and develops a method for 'walking through' subject searches in different catalogues using a 'naive subject searcher' model in which searching behaviour is determined by 3 basic characteristics: a lack of understanding of how information is stored, indexed, and retrieved in library catalogues; a preference for the simplest available mode of interaction with the catalogue and a lack of any searching strategy or tactics beyond simple 'subject searching'. A complete 'naive Subject search' of the GEAC 8000-based GLIS on-line catalogue is presented, and sample NOTIS and MELVYL screens are discussed
    Imprint
    Medford, NJ : Learned Information
  15. Pejtersen, A.M.: ¬The role of domain, task and users in providing subject access to information (1993) 0.00 
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    Abstract
    Decribes the BookHouse, a system for the retrieval and indexing of fiction and non fiction literature developed for public and school libraries though cooperation between library and information science professionals. Discusses 3 aspects of the system: domain characteristic; task analysis; and user characteristics. Outlines the framework underlying the collection of field data with special emphasis on the work involved in transforming the empirical field studies of user behaviour in the library into computer system specifications and subsequent design of a retrieval system providing subject access to fiction. Describes a few of the many indexing policies, rules and practices which evolved for concept identification and book descriptions as well as the functionality and associated displays of the system for supporting the retrieval and indexing of fiction
  16. Poo, D.C.C.; Khoo, C.S.G.: Online Catalog Subject Searching (2009) 0.00 
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    Abstract
    The Online Public Access Catalog (OPAC) is an information retrieval system characterized by short bibliographic records, mainly of books, journals, and audiovisual materials available in a particular library. This, coupled with a Boolean search interface and a heterogeneous user population with diverse needs, presents special problems for subject searching by end users. To perform effective subject searching in the OPAC system requires a wide range of knowledge and skills. Various approaches to improving the OPAC design for subject searching have been proposed and are reviewed in this entry. The trend toward Web-based OPAC interfaces and the developments in Internet and digital library technologies present fresh opportunities for enhancing the effectiveness of the OPAC system for subject searching.
    Source
    Encyclopedia of library and information sciences. 3rd ed. Ed.: M.J. Bates
  17. Basista, T.; Micco, M.H.; Rambler, L.: Designing the OPAC user interface to improve access and retrieval (1991) 0.00 
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    Source
    Microcomputers for information management. 8(1991) no.2, S.87-103
  18. Larsen, G.: Advances in OPACs in Europe : an overview (1994) 0.00 
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    Source
    Resource sharing: new technologies as a must for universal availability of information. Festschrift in honor of Hans-Peter Geh; 16th Int. Essen Symposium, 18.-21.10.1993. Ed. by A.H. Helal
  19. Philips, R.: HyperLib : a hypertext interface to a library information system (1995) 0.00 
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  20. Cherry, J.M.: OPACs in twelve Canadian academic libraries : an evaluation of functional capabilities and interface features (1994) 0.00 
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    Source
    Information technology and libraries. 13(1994) no.3, S.174-195

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