Search (10 results, page 1 of 1)

  • × language_ss:"e"
  • × theme_ss:"Datenfernübertragung"
  • × theme_ss:"OPAC"
  1. Millsap, L.; Ferl, T.E.: Search patterns of remote users : an analysis of OPAC transaction logs (1993) 0.01
    0.013047772 = product of:
      0.06523886 = sum of:
        0.06523886 = weight(_text_:system in 6038) [ClassicSimilarity], result of:
          0.06523886 = score(doc=6038,freq=8.0), product of:
            0.13391352 = queryWeight, product of:
              3.1495528 = idf(docFreq=5152, maxDocs=44218)
              0.04251826 = queryNorm
            0.4871716 = fieldWeight in 6038, product of:
              2.828427 = tf(freq=8.0), with freq of:
                8.0 = termFreq=8.0
              3.1495528 = idf(docFreq=5152, maxDocs=44218)
              0.0546875 = fieldNorm(doc=6038)
      0.2 = coord(1/5)
    
    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
  2. Ferl, T.E.; Millsap, L.: Remote use of the University of California MELVYL Library System : an online survey (1992) 0.01
    0.010544192 = product of:
      0.05272096 = sum of:
        0.05272096 = weight(_text_:system in 3102) [ClassicSimilarity], result of:
          0.05272096 = score(doc=3102,freq=4.0), product of:
            0.13391352 = queryWeight, product of:
              3.1495528 = idf(docFreq=5152, maxDocs=44218)
              0.04251826 = queryNorm
            0.3936941 = fieldWeight in 3102, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              3.1495528 = idf(docFreq=5152, maxDocs=44218)
              0.0625 = fieldNorm(doc=3102)
      0.2 = coord(1/5)
    
    Abstract
    This report presents the results of a survey of users who access the University of California's online union catalog, the MELVYL library system, via microcomputers with modems or connections carried through local or wide area networks. The report includes descriptive statistics on user location, status, subject interest, affiliation, in-library versus out-of-library usage patterns, need for assistance, and desire for new features
  3. Low, K.: ABCs of OPACs (1994) 0.01
    0.009319837 = product of:
      0.046599183 = sum of:
        0.046599183 = weight(_text_:system in 1591) [ClassicSimilarity], result of:
          0.046599183 = score(doc=1591,freq=2.0), product of:
            0.13391352 = queryWeight, product of:
              3.1495528 = idf(docFreq=5152, maxDocs=44218)
              0.04251826 = queryNorm
            0.3479797 = fieldWeight in 1591, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.1495528 = idf(docFreq=5152, maxDocs=44218)
              0.078125 = fieldNorm(doc=1591)
      0.2 = coord(1/5)
    
    Abstract
    Looks at the services offered by academic OPACs. Describes the services provided by Harvard Online Library Information System, University of California MELVYL Catalog, Stanford University' SOCRATES, and Princeton University Library. Many libraries now offer dial-up and/or Internet access to their OPACs
  4. Maio, A.; Littlefield, W.: Issues in mounting a commercial database on an online catalog (1992) 0.01
    0.0092261685 = product of:
      0.04613084 = sum of:
        0.04613084 = weight(_text_:system in 4216) [ClassicSimilarity], result of:
          0.04613084 = score(doc=4216,freq=4.0), product of:
            0.13391352 = queryWeight, product of:
              3.1495528 = idf(docFreq=5152, maxDocs=44218)
              0.04251826 = queryNorm
            0.34448233 = fieldWeight in 4216, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              3.1495528 = idf(docFreq=5152, maxDocs=44218)
              0.0546875 = fieldNorm(doc=4216)
      0.2 = coord(1/5)
    
    Abstract
    Hartford University mounted a DRA Atlas Integrated library system in 1991, using a DECnet/Ethernet network and a VAX 6310 mainframe computer. As VAX VT320 terminals were available in many campus buildings, the library's catalogue could be searched from many locations and could be dialed up by remote users. Commercial databases in MARC format could be mounted on the system and searched with the same commands that users employed for the OPAC. Explains the use of Periodical Abstracts from UMI on the online catalogue. Discusses searching strategies and compares the Periodical Abstracts Ondisc CD-ROM with the tape loaded product
  5. Kalin, S.W.: ¬The searching behavior of remote users : a study of one online public access catalog (OPAC) (1991) 0.01
    0.007908144 = product of:
      0.03954072 = sum of:
        0.03954072 = weight(_text_:system in 3669) [ClassicSimilarity], result of:
          0.03954072 = score(doc=3669,freq=4.0), product of:
            0.13391352 = queryWeight, product of:
              3.1495528 = idf(docFreq=5152, maxDocs=44218)
              0.04251826 = queryNorm
            0.29527056 = fieldWeight in 3669, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              3.1495528 = idf(docFreq=5152, maxDocs=44218)
              0.046875 = fieldNorm(doc=3669)
      0.2 = coord(1/5)
    
    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
  6. Lucas, T.A.: Time patterns in remote OPAC use (1993) 0.01
    0.007908144 = product of:
      0.03954072 = sum of:
        0.03954072 = weight(_text_:system in 6435) [ClassicSimilarity], result of:
          0.03954072 = score(doc=6435,freq=4.0), product of:
            0.13391352 = queryWeight, product of:
              3.1495528 = idf(docFreq=5152, maxDocs=44218)
              0.04251826 = queryNorm
            0.29527056 = fieldWeight in 6435, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              3.1495528 = idf(docFreq=5152, maxDocs=44218)
              0.046875 = fieldNorm(doc=6435)
      0.2 = coord(1/5)
    
    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
  7. Burton, J.; Newport, J.; Robinson, E.: OPACs and JANET : a simple technique for easy user access (1989) 0.01
    0.00745587 = product of:
      0.03727935 = sum of:
        0.03727935 = weight(_text_:system in 3107) [ClassicSimilarity], result of:
          0.03727935 = score(doc=3107,freq=2.0), product of:
            0.13391352 = queryWeight, product of:
              3.1495528 = idf(docFreq=5152, maxDocs=44218)
              0.04251826 = queryNorm
            0.27838376 = fieldWeight in 3107, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.1495528 = idf(docFreq=5152, maxDocs=44218)
              0.0625 = fieldNorm(doc=3107)
      0.2 = coord(1/5)
    
    Abstract
    OPACs in an increasing number of libraries are now available using the Joint Academic Network (JANET). Access has tended to be obstructed, for the casual user, by the lengthy JANET addressing codes and varying log-on procedures required by each library system. Discribed how a communications and menu package on an IBK/PC can be used so that by merely pressing cursor control, return and escape keays, any user can gain access to any one of over 40 OPACs linked to JANET
  8. Snelson, P.: Relationships between access and use in information systems : remote access to and browsing of online catalogues (1993) 0.01
    0.006523886 = product of:
      0.03261943 = sum of:
        0.03261943 = weight(_text_:system in 7911) [ClassicSimilarity], result of:
          0.03261943 = score(doc=7911,freq=2.0), product of:
            0.13391352 = queryWeight, product of:
              3.1495528 = idf(docFreq=5152, maxDocs=44218)
              0.04251826 = queryNorm
            0.2435858 = fieldWeight in 7911, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.1495528 = idf(docFreq=5152, maxDocs=44218)
              0.0546875 = fieldNorm(doc=7911)
      0.2 = coord(1/5)
    
    Abstract
    Examined two groups of online catalogue users segregated by their method of access to the system: terminals in the library or remote workstations. An online survey collected demographic data, perceptions on source and terminal accessibility, and information on usage, task variety and search satisfaction. Transaction logs furnished data on browsing behavious, while interviews of both groups provided additional information about remote use. Results indicate that remote use is comparable to traditional use
  9. Sloan, B.G.: Remote access : design implications for the online catalog (1991) 0.00
    0.0026882975 = product of:
      0.013441487 = sum of:
        0.013441487 = product of:
          0.04032446 = sum of:
            0.04032446 = weight(_text_:22 in 3696) [ClassicSimilarity], result of:
              0.04032446 = score(doc=3696,freq=2.0), product of:
                0.1488917 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.04251826 = queryNorm
                0.2708308 = fieldWeight in 3696, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.0546875 = fieldNorm(doc=3696)
          0.33333334 = coord(1/3)
      0.2 = coord(1/5)
    
    Date
    8. 1.2007 17:22:42
  10. Lazinger, S.S.; Peritz, B.C.: Reader use of a nationwide research library network : local OPAC vs. remote files (1991) 0.00
    0.0023042548 = product of:
      0.011521274 = sum of:
        0.011521274 = product of:
          0.03456382 = sum of:
            0.03456382 = weight(_text_:22 in 3013) [ClassicSimilarity], result of:
              0.03456382 = score(doc=3013,freq=2.0), product of:
                0.1488917 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.04251826 = queryNorm
                0.23214069 = fieldWeight in 3013, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.046875 = fieldNorm(doc=3013)
          0.33333334 = coord(1/3)
      0.2 = coord(1/5)
    
    Date
    22. 2.1999 13:06:18