Search (84 results, page 2 of 5)

  • × theme_ss:"Datenfernübertragung"
  • × year_i:[1990 TO 2000}
  1. Boss, R.W.: Client/server technology for libraries with a survey of vendor offerings (1994) 0.00 
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    Abstract
    Defines client/server computer architecture and discusses it in the context of library automation. Addresses the following issues: is client/server needed?; the role of the Z39.50 standard; utilizing existing hardware and software; writing specifications; staff requirements; training; and ongoing support. Presents the responses of 30 library automation vendors in the USA to a questionnaire survey regarding present and future applications of client/server technology. Includes a bibliography of materials used in the preparation of the report
    Type
    a
  2. Scharf, A.: ATM ohne Geheimnis (1996) 0.00 
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  3. Pospischil, R.: ¬A bypass for the local loop : Deutsche Telekom's strategy for fiber to the home (1995) 0.00 
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    Abstract
    Technological and regulatory developments are opening the door for competition and new services in the local loop. The reunification of Germany created an opprotunity for Deutsche Telekom to install fibre in the loop on a large scale in eastern Germany. Deutsche Telekom's strategy consists of 4 steps: fibre in the loop is seen as a process innovation. New broadband services - product innovations - can be based on the process innovation. Only a sufficient number of installations will enable the industry to invest in new products. Besides the local networks equipped with fibre, there is an overlay network for the rapid delivery of fibre access for business customers. The experience gained in eastern Germany will be transferred to western Germany when tranforming its existing network structure
    Type
    a
  4. Nordstrand, J.-E.: SUNET (1991) 0.00 
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    Abstract
    Describes SUNET, the Swedish University Network, a medium speed network connecting most most mainframe and smaller computers in Swedish universities. Discusses the application of SUNET to remote access to OPACs
    Type
    a
  5. Reddy, E.R.; Pradeep, C.: Internet and Z39.50 : a virtual union catalog (1999) 0.00 
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  6. Dempsey, L.: Libraries, networks and OSI : a review with a report on North American developments (1991) 0.00 
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  7. Werner, H.-J.: ¬Die Werkzeuge liegen bereit : Infoface - eine neue Benutzeroberfläche oder ein neues Retrieval-Software-Konzept? (1993) 0.00 
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  8. Rose, M.T.: ¬The open book : a practical perspective on OSI (1990) 0.00 
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  9. Kunze, M.: Fenster zum Host : Fünf Terminalprogramme für Windows im Vergleich (1994) 0.00 
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  10. Lynch, C.: ¬The Z39.50 information retrieval protocol : an overview and status report (1991) 0.00 
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  11. Buxton, A.B.: International gateways (1991) 0.00 
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    Abstract
    Describes types of international gateways available for online searching. Public data networks are provided by national telecommunications authorities. Private data networks are run by an organization for its own use, or for customers of its services. Academic data networks are a special case of private networks which serve the the academic and research communications. Gives details of a number of academic networks: JANET, BITNET, NETNORTH, EARN, Internet. Describes the gateways between JANET and the UK public data network, EARN and Internet. Describes the international X.25 infrastructure (IXI) network which is organized by COSINE (Cooperation for OSI networking in Europe) programme which aims to provide OSI-based services for European researchers
    Source
    Standards for the international exchange of bibliographic information: papers presented at a course held at the School of Library, Archive and Information Studies, University College, London, 3-18 August 1990. Ed.: I.C. McIlwaine
    Type
    a
  12. Blackmann, C.; Cave, M.; David, P.A.: competition, regulation, trade and standards : ¬The new international telecommunications environment (1996) 0.00 
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  13. Mochmann, E.: Moderne Netzwerke zur nationalen und internationalen Datenkommunikation (1990) 0.00 
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  14. Löns, K.: Datenkommunikation (1990) 0.00 
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  15. Löns, K.: Kommunikationsnetze und Datenkommunikation (1997) 0.00 
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  16. Hinnebusch, M.: Z39.50 at ten years : how stands the standard? (1997) 0.00 
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    Abstract
    The ANSI Z39.50 standard was adopted 10 years ago. It outlines a set of rules and procedures to allow a computer system to search the databases provided by another system and to retrieve the results of that search. Traces its development adoption in library automation product lines. Recent major developments have been the migration to version 3 and the adoption of community profiles. Community profiles are documents that describe agreements that a community of interest develops to ensure clients and servers can interpret in specific ways. Describes the Government Information Locators Service, WAIS, ATS, ZDSR, Cataloguing, CEOS CIP, Digital Collection, Digital Library Objects and Museum Profiles
    Type
    a
  17. Bell, S.J.: Providing remote access to CD-ROMs : some practical advice (1993) 0.00 
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    Abstract
    Discusses the factors influencing remote access to CD-ROMs: how many CD-ROM workstations are located at the place of work (single or multiple workstations); whether a PC or a CD-ROM LAN is in operation; what level of security is needed in the organisation; how many remote users need to be accomodated; and the level of software sophistication present in the staff of the organisation
    Type
    a
  18. Reiss, L.K.; Merakos, L.F.: Performance analysis of an adaptive bandwidth reservation scheme for ATM virtual path traffic (1996) 0.00 
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    Abstract
    Adaptive, in-call, bandwidth reservation may be used to enhance bandwidth utilization in a policed asynchronous transfer mode (ATM) virtual path shared by traffic streams originated by many bursty sources. Presents a model, based on Markov-modulated sources and stochastic fluid methods, for performance analysis of the proposed mechanism. The model, corroborated by simulations, is used to study achievable bandwidth gain and the effects of feedback delay and competing reservation processes
    Type
    a
  19. Kalin, S.W.: ¬The searching behavior of remote users : a study of one online public access catalog (OPAC) (1991) 0.00 
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    Abstract
    This study aimed to determine if the searching behaviour of remote users of LIAS, Penn State's online catalogue differed from those using the OPAC within the library. More than 1.000 searches done by remote users (those accessing the system via either dial-access or the university's computer network) were compared to more than 1.000 searches done by in-house users. Each search was duplicated step by step and analysed according to a pre-determined set of criteria. Although few dramatic differences were found between the 2 groups, there were enough subtle differences to generate interest. In general, remote users are the more sophisticated searchers, bearing out the assumption that remote users seem to have a better conceptual knowledge of how an information system should operate. On the other hand, they struggle more with the procedural details of how to use the OPAC. Dial-access users seem to constitute a unique group of users: their searches are often quite different than those done by either network or in-house users
    Type
    a
  20. Corey, J.F.: ¬A grant for Z39.50 (1994) 0.00 
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    Abstract
    In Sept. 1990, the US Dept. of Education's Library Technology and Cooperation Grants Program awarded a three-year grant to the Florida Center for Library Automation (FCLA), an agency of the Florida State University System, to develop software adhering to the ANSI Z39.50 Information Retrieval protocol standard. The Z39.50 software was to operate over the OSI communications protocols and be integrated with FCLA's NOTIS system, which is shared by all 9 state universities in Florida. In order to test the correctness of its Z39.50 software, FCLA sought out other library software developers who would be willing to develop Z39.50 systems of their own. As part of this process, FCLA helped to found the Z39.50 Implementor's Group (ZIG), which has since gone on to improve the standard and promote Z39.50 implementations throughout much of the North American library systems marketplace. Early on in the project, it became apparent that TCP/IP would be a more heavily used communication vehicle for Z39.50 messages than OSI. FCLA expanded its design to include TCP/IP and, by the end of the grant in Sept. 1993, will have a working Z39.50 system that can communicate over both OSI and TCP/IP networks
    Type
    a

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