Search (19 results, page 1 of 1)

  • × theme_ss:"Datenfernübertragung"
  1. Phifer, L.A.: Tearing down the wall : integrating ISO and Internet management (1994) 0.01
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    Abstract
    The rapid growth of the Internet TCP/IP networks has encouraged the deployment of management products based on the Internet's Simple Network Management Protocol (SNMP). However, many organizations, including most telecommunications service providers, continue to define enterprise management solutions based on ISO/CCITT standard management and underlying Common Management Information Protocol (CMIP). Concludes that the key to achieving timely, effective, integrated management is to encourage a transition process aimed away from existing commercial investment in both ISO/CCITT and Internet based management technologies through deployment of common methods and tools which support integration
  2. Petry, W.; Werner, H.-J.: Anwendertraum: Kommunikations- und Retrieval-Software im Vergleich (1993) 0.01
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    Source
    Cogito. 9(1993) H.2, S.18-22
  3. Petry, W.: Datenreisen billiger : wie man Telekommunikationskosten sparen kann (1994) 0.01
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    Source
    Cogito. 10(1994) H.4, S.17-22
  4. Matthews, J.R.; Parker, M.R.: Local Area Networks and Wide Area Networks for libraries (1995) 0.01
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    Date
    30.11.1995 20:53:22
  5. Scheuerer, J.: Onlinebanking (1997) 0.00
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    Source
    Com!. 1997, H.8, S.22-24
  6. Berezak-Lazarus, N.: ADSL - Auf der Überholspur durch die Multimedia-Welt (1999) 0.00
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    Footnote
    Rez. in: Internet Professionell 2000, H.2, S.22
  7. 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
  8. Boßmeyer, C.: OSI-Anwendungen in Bibliotheken oder Was ein Bibliothekar von OSI wissen sollte (1995) 0.00
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    Abstract
    Open System Interconnection (OSI) Standard 7498 appeared in 1984. Open systems of PCs and workstations decentralize information processing and divide it between several computers, based on the client-server concept. Relevant terminology is explained, including application protocol, bases of the SR/Z39.50 model, data transmission, search request services, query types, attribute sets, transmission format, transfer syntax, solution models and cooperation between library systems
  9. Poo, G.-S.; Chai, B.-P.: Modularity versus efficiency in OSI system implementations (1997) 0.00
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    Abstract
    Examines a number of possible OSI system implementation strategies based on the various prevailing system facilities: processes, threads, kernel and front-end processors. Analyzes the pros and cons of the strategies showing their relative merits in implementation. The analysis leads to the recommendation of an enhanced subsystem architecture that holds the best compromise of the conflicting requirements of modularity and efficiency
  10. Holm, L.A.: Connectivity and protocols, the technical side : OSI and TCP/IP, FTP, TELNET, SR, ILL, update (1994) 0.00
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    Abstract
    Describes a layer model for networks. For each layer, one or more services are defined, and for each service a protocol is specified. 2 OSI application level protocols have been defined for library services: SR and ILL. The underlying layers are supposed to be OSI services, but some implementations are using TCP/IP, and some are using a mixture of OSI and TCP/IP. The systems based directly on TCP/IP can not communicate with those based purely on OSI. Discusses the pros and cons for choosing OSI or TCP/IP. Gateways between the OSI and TCP/IP networks are needed. The ISO protocol SR and the ANSI protocol Z39.50 are both 'search and retrieve' protocols. The SR is almost a subst of Z39.50, but they may become identical in the future. There is only one protocol for interlibrary loan, the ISO ILL protocol. It covers 3 models of interlibrary loan and all services connected with ILL. Other services such as Explain, Scan and Update are presently being discussed in ISO TC 46. Discusses the needs of the library community for network services such as file transfer, remote login, directories and electronic mail
  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
  12. 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
  13. Maier-Rabler, U.: Austrian information highway initiatives in the stage of disillusionment (1996) 0.00
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    Abstract
    Discusses Austrian government policy on the information superhighway (ISH) since Aug. 94. The Austrian telecommunications infrastructure is far behind the standards of Europe. The Austrain PTT monopoly over the public telecommunications network is an obstacle to development. The rates for data services are still based on copper cable with transmission speeds of 9600 Kbps. Although there are various ISH initiatives in Austria, the gap between vision and reality is large. Describes the initiatives of the Austrian National Host and the Bureau for International Research and Technology Cooperation; the Austrian Platform for Telematic Applications; BNet (Burgenland); Telematik Initiative Wien; TELKIS Telekommunikationsinitiative Steiermark; Datahighway Upper Austria; Vorarlberger Telekommunikations GmbH; Telematik Initiative; Datenbahn Telecom GmbH (Salzburg); Ti-KOM (Tirol) and other initiatives
  14. Cerf, V.G.: Netztechnik (1995) 0.00
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    Pages
    S.22-31
  15. Duhm, U.: Ring frei zur nächsten Runde (1999) 0.00
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    Date
    19. 2.1999 20:21:22
  16. Lucas, T.A.: Time patterns in remote OPAC use (1993) 0.00
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    Abstract
    Expanded hours of access and the reduction of peak system loads are often cited as advantages of remote access to OPACs. This argument is based on the assumption that remote users search OPACs when libraries are closed or when there is low internal use. The study tested this assumption by performing a transactional log analysis of the remote and internal use of the OPAC at the Research Libraries of the New York Public Library. Analysis showed that pateerns of remote and internal use differed greatly. A large part of the remote searching occured when the Research Libraries were closed. Compared to internal searching, remote searching was distributed more evenly over the course of the day and the week. Results show that remote access expands the hours of use of the Online catalogue and has potential to reduce peak system loads at the Research Libraries
  17. Moen, W.: Information retrieval protocols : Z39.50 and Search & Retrieve via URL (2009) 0.00
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    Abstract
    Information retrieval (IR) protocols support effective and interoperable intersystem search and retrieval. Although intersystem search methods have been envisioned and under development since the 1970s, it was the Z39.50 IR protocol, first released in 1988, that demonstrated real-world possibilities for such search and retrieval. As the networked information environment changed with the emergence of the World Wide Web, the need for standard IR protocols did not disappear, and one can argue the need is even more compelling given both the visible and invisible Web. A new protocol, based on the experience from Z39.50 but simpler and more comprehensible than Z39.50, is now being used for Web search and retrieval. Search and retrieve via URL (SRU) uses Web technologies and standards resulting in a Web friendly protocol that provides standard search access to existing Z39.50 resources and a wide-range of new non-catalog digital resources. This entry provides both an overview of the two protocols and technical details to understand both. A brief discussion of IR and communications protocols provides background to the specifics of these two IR protocols. Although communication protocols are by their nature technical specifications, this entry focuses on an overview of the functions and capabilities of the protocols. It uses technical concepts and terminology from the protocols to help explain how the protocols work but limits discussion of technical details.
  18. Sloan, B.G.: Remote access : design implications for the online catalog (1991) 0.00
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    Date
    8. 1.2007 17:22:42
  19. Lazinger, S.S.; Peritz, B.C.: Reader use of a nationwide research library network : local OPAC vs. remote files (1991) 0.00
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    Date
    22. 2.1999 13:06:18