Search (14 results, page 1 of 1)

  • × theme_ss:"Datenfernübertragung"
  1. Opacs in the UK : JANET-OPACs (1991) 0.02 
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    Imprint
    Brighton : Janet user group for libraries
  2. Petry, W.; Werner, H.-J.: Anwendertraum: Kommunikations- und Retrieval-Software im Vergleich (1993) 0.02 
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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. Millsap, L.; Ferl, T.E.: Search patterns of remote users : an analysis of OPAC transaction logs (1993) 0.01 
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    Abstract
    The focus of this study is the search behavior of remote users of the University of California MELVYL Library System, an OPAC. Transaction logs from randomly selected remote user search sessions are analyzed. Descriptive data on the number and type of searches, choice of search mode and database, number of retrievals, number and type of errors, and use of system HELP facilities are presented. The search data have been cross-tabulated with demographic data on the same group of remote users, collected through an online survey conducted by the authors. Effectiveness of system usage is discussed. A case mode is made for the desirability of additional heuristics in the catalog portion of the system
  6. Scheuerer, J.: Onlinebanking (1997) 0.01 
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    Source
    Com!. 1997, H.8, S.22-24
  7. Berezak-Lazarus, N.: ADSL - Auf der Überholspur durch die Multimedia-Welt (1999) 0.01 
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    Footnote
    Rez. in: Internet Professionell 2000, H.2, S.22
  8. Kalin, S.W.: ¬The searching behavior of remote users : a study of one online public access catalog (OPAC) (1991) 0.01 
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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
  9. Corey, J.F.: ¬A grant for Z39.50 (1994) 0.01 
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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
  10. Cerf, V.G.: Netztechnik (1995) 0.01 
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    Pages
    S.22-31
  11. Duhm, U.: Ring frei zur nächsten Runde (1999) 0.01 
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    Date
    19. 2.1999 20:21:22
  12. Sloan, B.G.: Remote access : design implications for the online catalog (1991) 0.01 
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    Date
    8. 1.2007 17:22:42
  13. Lazinger, S.S.; Peritz, B.C.: Reader use of a nationwide research library network : local OPAC vs. remote files (1991) 0.01 
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    Date
    22. 2.1999 13:06:18
  14. Harms, T.: Kriegserklärung : Telekom schockiert mit neuem Internet-Tarif die Konkurrenz (2000) 0.01 
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    Content
    Weniger begeistert sind die Rivalen der Telekom beim Kampf um den Telefon- und Internetmarkt. Sie werden von der TarifOffensive kalt erwischt. Arcor-Mannesmann etwa dürfte mit dem gerade eingeführten Angebot von 79 Mark für einen 768-Kilobit-Zugang in Zwangs-Kombination mit einem Hochpreis-ISDN-Anschluss beim Kunden wenig Punkte sammeln. Online-Hauptkonkurrent AOL hat das Produkt DSL-Flatrate bislang überhaupt noch nicht auf dem Plan. Dabei könnte das hauseigene Intemet-TV-Angebot AOLlive durch den DSL-Turbo profitieren. Auch bei der Bertelsmann Broadband Group (BBG) ist man mit den DSL-Offerten der Telekom nicht zufrieden. Allerdings aus anderen Gründen. Das Hamburger Unternehmen möchte über Telefonund Kabelnetze interaktives Fernsehen in die Haushalte schicken. "Die Bandbreite ist das entscheidende Handicap", sagt Michael Schacht, Leiter Produktmanagement der BBG. Um unsere Angebote über DSL-Leitungen in guter Qualität auf einen Fernseher zu schicken, reichen 768 Kilobit nicht aus. Wir brauchen mindestens zwei Megabit." Helle Aufregung herrscht bei Deutschlands Kabelnetzbetreibern. Für eine "Kriegserklärung" an die Branche hält Dietmar Schickel, Geschäftsführer des Netzbetreibers Telecolumbus, das Vorgehen der Telekom. Telecolumbus bietet M Berlin einen Highspeed-Zugang zum Web über das TV-Netz an. 49 Mark sind ein quer subventionierter Dumpingpreis. Der Monopolist zeigt seine Krallen", schimpft Schickel. Hintergrund der Empörung: In den Businessplänen der KabelnetzUnternehmen steht die Vermarktung von Highspeed-Internet-Zugängen ganz oben. Sollte die Telekom mit ihrer DSL-Großoffensive in den nächsten zwei Jahren den Markt der Highspeed-Kunden abschöpfen, könnten sich die Milliardeninvestionen, die jetzt in die Modernisierung der Kabelnetze gesteckt werden, nicht mehr rechnen. "Das Tarifdumping" mahnt Schickel, "ist ein Fall für den Regulierer"."

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