Document (#11933)

Author
Pienaar, R.E.
Title
Enhancement of subject access in online public access catalogues (OPACs)
Source
South African journal of library and information science. 57(1989) no.4, S.378-382
Year
1989
Abstract
Subject access plays an important part when plans are made for an on-line public access catalogue (OPAC). Therefore, current subject searching facilities in OPACs should be accessed carefully. These facilities include, amongst other things, phrase searching, keyword searching and class number retrieval. Users reaction have been instrumental in identifying certain shortcomings in subject access to OPACs. Points out certain shortcomings in subject access, as shown by a number of research projects undertaken during the past decade. Highlights aspects which could, in future, improve subject access in OPACs. This could be achieved by either enhancing content representation in the records within the OPAC data base or by enhancing the searchability and browsability of the OPAC. Considers whether the on-line catalogue will ever be a finished, perfect product, or achieve the universal, familiar uniformity experienced by users of the 20th century card catalogue.
Theme
Kataloganreicherung

Similar documents (content)

  1. Wood, A.J.: OPACs in public libraries : a second look (1989) 0.48
    0.4804746 = sum of:
      0.4804746 = product of:
        1.3346516 = sum of:
          0.0800155 = weight(abstract_txt:public in 2518) [ClassicSimilarity], result of:
            0.0800155 = score(doc=2518,freq=2.0), product of:
              0.11224927 = queryWeight, product of:
                1.2909707 = boost
                4.6084785 = idf(docFreq=1197, maxDocs=44218)
                0.018867292 = queryNorm
              0.71283764 = fieldWeight in 2518, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                4.6084785 = idf(docFreq=1197, maxDocs=44218)
                0.109375 = fieldNorm(doc=2518)
          0.12340809 = weight(abstract_txt:line in 2518) [ClassicSimilarity], result of:
            0.12340809 = score(doc=2518,freq=1.0), product of:
              0.18878746 = queryWeight, product of:
                1.6742148 = boost
                5.9765754 = idf(docFreq=304, maxDocs=44218)
                0.018867292 = queryNorm
              0.65368795 = fieldWeight in 2518, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.9765754 = idf(docFreq=304, maxDocs=44218)
                0.109375 = fieldNorm(doc=2518)
          0.14477116 = weight(abstract_txt:facilities in 2518) [ClassicSimilarity], result of:
            0.14477116 = score(doc=2518,freq=1.0), product of:
              0.20999008 = queryWeight, product of:
                1.7657288 = boost
                6.30326 = idf(docFreq=219, maxDocs=44218)
                0.018867292 = queryNorm
              0.68941903 = fieldWeight in 2518, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.30326 = idf(docFreq=219, maxDocs=44218)
                0.109375 = fieldNorm(doc=2518)
          0.068209864 = weight(abstract_txt:searching in 2518) [ClassicSimilarity], result of:
            0.068209864 = score(doc=2518,freq=1.0), product of:
              0.1455479 = queryWeight, product of:
                1.8004174 = boost
                4.284727 = idf(docFreq=1655, maxDocs=44218)
                0.018867292 = queryNorm
              0.46864203 = fieldWeight in 2518, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.284727 = idf(docFreq=1655, maxDocs=44218)
                0.109375 = fieldNorm(doc=2518)
          0.16033354 = weight(abstract_txt:catalogue in 2518) [ClassicSimilarity], result of:
            0.16033354 = score(doc=2518,freq=2.0), product of:
              0.20422743 = queryWeight, product of:
                2.1326878 = boost
                5.0754814 = idf(docFreq=750, maxDocs=44218)
                0.018867292 = queryNorm
              0.78507346 = fieldWeight in 2518, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                5.0754814 = idf(docFreq=750, maxDocs=44218)
                0.109375 = fieldNorm(doc=2518)
          0.14709252 = weight(abstract_txt:opac in 2518) [ClassicSimilarity], result of:
            0.14709252 = score(doc=2518,freq=1.0), product of:
              0.24294142 = queryWeight, product of:
                2.3260608 = boost
                5.53568 = idf(docFreq=473, maxDocs=44218)
                0.018867292 = queryNorm
              0.605465 = fieldWeight in 2518, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.53568 = idf(docFreq=473, maxDocs=44218)
                0.109375 = fieldNorm(doc=2518)
          0.10342943 = weight(abstract_txt:subject in 2518) [ClassicSimilarity], result of:
            0.10342943 = score(doc=2518,freq=1.0), product of:
              0.24203634 = queryWeight, product of:
                3.2834132 = boost
                3.9070187 = idf(docFreq=2415, maxDocs=44218)
                0.018867292 = queryNorm
              0.42733017 = fieldWeight in 2518, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.9070187 = idf(docFreq=2415, maxDocs=44218)
                0.109375 = fieldNorm(doc=2518)
          0.40892646 = weight(abstract_txt:opacs in 2518) [ClassicSimilarity], result of:
            0.40892646 = score(doc=2518,freq=3.0), product of:
              0.36655894 = queryWeight, product of:
                3.299222 = boost
                5.888745 = idf(docFreq=332, maxDocs=44218)
                0.018867292 = queryNorm
              1.1155818 = fieldWeight in 2518, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                5.888745 = idf(docFreq=332, maxDocs=44218)
                0.109375 = fieldNorm(doc=2518)
          0.0984651 = weight(abstract_txt:access in 2518) [ClassicSimilarity], result of:
            0.0984651 = score(doc=2518,freq=1.0), product of:
              0.24657837 = queryWeight, product of:
                3.5796134 = boost
                3.6509786 = idf(docFreq=3120, maxDocs=44218)
                0.018867292 = queryNorm
              0.3993258 = fieldWeight in 2518, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.6509786 = idf(docFreq=3120, maxDocs=44218)
                0.109375 = fieldNorm(doc=2518)
        0.36 = coord(9/25)
    
  2. Slack, F.: Subject searching on OPACs : problems and help provision (1991) 0.31
    0.30951512 = sum of:
      0.30951512 = product of:
        1.1054112 = sum of:
          0.037189905 = weight(abstract_txt:users in 4904) [ClassicSimilarity], result of:
            0.037189905 = score(doc=4904,freq=2.0), product of:
              0.06735204 = queryWeight, product of:
                3.569778 = idf(docFreq=3384, maxDocs=44218)
                0.018867292 = queryNorm
              0.5521719 = fieldWeight in 4904, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.569778 = idf(docFreq=3384, maxDocs=44218)
                0.109375 = fieldNorm(doc=4904)
          0.09646331 = weight(abstract_txt:searching in 4904) [ClassicSimilarity], result of:
            0.09646331 = score(doc=4904,freq=2.0), product of:
              0.1455479 = queryWeight, product of:
                1.8004174 = boost
                4.284727 = idf(docFreq=1655, maxDocs=44218)
                0.018867292 = queryNorm
              0.6627599 = fieldWeight in 4904, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                4.284727 = idf(docFreq=1655, maxDocs=44218)
                0.109375 = fieldNorm(doc=4904)
          0.11337294 = weight(abstract_txt:catalogue in 4904) [ClassicSimilarity], result of:
            0.11337294 = score(doc=4904,freq=1.0), product of:
              0.20422743 = queryWeight, product of:
                2.1326878 = boost
                5.0754814 = idf(docFreq=750, maxDocs=44218)
                0.018867292 = queryNorm
              0.5551308 = fieldWeight in 4904, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.0754814 = idf(docFreq=750, maxDocs=44218)
                0.109375 = fieldNorm(doc=4904)
          0.14709252 = weight(abstract_txt:opac in 4904) [ClassicSimilarity], result of:
            0.14709252 = score(doc=4904,freq=1.0), product of:
              0.24294142 = queryWeight, product of:
                2.3260608 = boost
                5.53568 = idf(docFreq=473, maxDocs=44218)
                0.018867292 = queryNorm
              0.605465 = fieldWeight in 4904, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.53568 = idf(docFreq=473, maxDocs=44218)
                0.109375 = fieldNorm(doc=4904)
          0.20685886 = weight(abstract_txt:subject in 4904) [ClassicSimilarity], result of:
            0.20685886 = score(doc=4904,freq=4.0), product of:
              0.24203634 = queryWeight, product of:
                3.2834132 = boost
                3.9070187 = idf(docFreq=2415, maxDocs=44218)
                0.018867292 = queryNorm
              0.85466033 = fieldWeight in 4904, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                3.9070187 = idf(docFreq=2415, maxDocs=44218)
                0.109375 = fieldNorm(doc=4904)
          0.3338871 = weight(abstract_txt:opacs in 4904) [ClassicSimilarity], result of:
            0.3338871 = score(doc=4904,freq=2.0), product of:
              0.36655894 = queryWeight, product of:
                3.299222 = boost
                5.888745 = idf(docFreq=332, maxDocs=44218)
                0.018867292 = queryNorm
              0.91086876 = fieldWeight in 4904, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                5.888745 = idf(docFreq=332, maxDocs=44218)
                0.109375 = fieldNorm(doc=4904)
          0.17054655 = weight(abstract_txt:access in 4904) [ClassicSimilarity], result of:
            0.17054655 = score(doc=4904,freq=3.0), product of:
              0.24657837 = queryWeight, product of:
                3.5796134 = boost
                3.6509786 = idf(docFreq=3120, maxDocs=44218)
                0.018867292 = queryNorm
              0.69165254 = fieldWeight in 4904, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                3.6509786 = idf(docFreq=3120, maxDocs=44218)
                0.109375 = fieldNorm(doc=4904)
        0.28 = coord(7/25)
    
  3. Connell, T.H.: Subject cataloging (1996) 0.27
    0.2708857 = sum of:
      0.2708857 = product of:
        1.1286905 = sum of:
          0.037567474 = weight(abstract_txt:users in 4459) [ClassicSimilarity], result of:
            0.037567474 = score(doc=4459,freq=1.0), product of:
              0.06735204 = queryWeight, product of:
                3.569778 = idf(docFreq=3384, maxDocs=44218)
                0.018867292 = queryNorm
              0.5577778 = fieldWeight in 4459, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.569778 = idf(docFreq=3384, maxDocs=44218)
                0.15625 = fieldNorm(doc=4459)
          0.09744266 = weight(abstract_txt:searching in 4459) [ClassicSimilarity], result of:
            0.09744266 = score(doc=4459,freq=1.0), product of:
              0.1455479 = queryWeight, product of:
                1.8004174 = boost
                4.284727 = idf(docFreq=1655, maxDocs=44218)
                0.018867292 = queryNorm
              0.6694886 = fieldWeight in 4459, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.284727 = idf(docFreq=1655, maxDocs=44218)
                0.15625 = fieldNorm(doc=4459)
          0.16196133 = weight(abstract_txt:catalogue in 4459) [ClassicSimilarity], result of:
            0.16196133 = score(doc=4459,freq=1.0), product of:
              0.20422743 = queryWeight, product of:
                2.1326878 = boost
                5.0754814 = idf(docFreq=750, maxDocs=44218)
                0.018867292 = queryNorm
              0.793044 = fieldWeight in 4459, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.0754814 = idf(docFreq=750, maxDocs=44218)
                0.15625 = fieldNorm(doc=4459)
          0.29551265 = weight(abstract_txt:subject in 4459) [ClassicSimilarity], result of:
            0.29551265 = score(doc=4459,freq=4.0), product of:
              0.24203634 = queryWeight, product of:
                3.2834132 = boost
                3.9070187 = idf(docFreq=2415, maxDocs=44218)
                0.018867292 = queryNorm
              1.2209433 = fieldWeight in 4459, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                3.9070187 = idf(docFreq=2415, maxDocs=44218)
                0.15625 = fieldNorm(doc=4459)
          0.33727688 = weight(abstract_txt:opacs in 4459) [ClassicSimilarity], result of:
            0.33727688 = score(doc=4459,freq=1.0), product of:
              0.36655894 = queryWeight, product of:
                3.299222 = boost
                5.888745 = idf(docFreq=332, maxDocs=44218)
                0.018867292 = queryNorm
              0.92011636 = fieldWeight in 4459, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.888745 = idf(docFreq=332, maxDocs=44218)
                0.15625 = fieldNorm(doc=4459)
          0.19892953 = weight(abstract_txt:access in 4459) [ClassicSimilarity], result of:
            0.19892953 = score(doc=4459,freq=2.0), product of:
              0.24657837 = queryWeight, product of:
                3.5796134 = boost
                3.6509786 = idf(docFreq=3120, maxDocs=44218)
                0.018867292 = queryNorm
              0.8067599 = fieldWeight in 4459, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.6509786 = idf(docFreq=3120, maxDocs=44218)
                0.15625 = fieldNorm(doc=4459)
        0.24 = coord(6/25)
    
  4. Voshida, K.: ¬A study on improving subject access to the OPAC : a survey of catalogue use comparing an OPAC and a card catalogue in a private university library (1994) 0.24
    0.24431702 = sum of:
      0.24431702 = product of:
        0.76349074 = sum of:
          0.018783737 = weight(abstract_txt:users in 753) [ClassicSimilarity], result of:
            0.018783737 = score(doc=753,freq=1.0), product of:
              0.06735204 = queryWeight, product of:
                3.569778 = idf(docFreq=3384, maxDocs=44218)
                0.018867292 = queryNorm
              0.2788889 = fieldWeight in 753, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.569778 = idf(docFreq=3384, maxDocs=44218)
                0.078125 = fieldNorm(doc=753)
          0.05047828 = weight(abstract_txt:number in 753) [ClassicSimilarity], result of:
            0.05047828 = score(doc=753,freq=3.0), product of:
              0.09026624 = queryWeight, product of:
                1.1576767 = boost
                4.132649 = idf(docFreq=1927, maxDocs=44218)
                0.018867292 = queryNorm
              0.5592155 = fieldWeight in 753, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                4.132649 = idf(docFreq=1927, maxDocs=44218)
                0.078125 = fieldNorm(doc=753)
          0.070285335 = weight(abstract_txt:certain in 753) [ClassicSimilarity], result of:
            0.070285335 = score(doc=753,freq=1.0), product of:
              0.16233267 = queryWeight, product of:
                1.5524856 = boost
                5.542029 = idf(docFreq=470, maxDocs=44218)
                0.018867292 = queryNorm
              0.432971 = fieldWeight in 753, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.542029 = idf(docFreq=470, maxDocs=44218)
                0.078125 = fieldNorm(doc=753)
          0.10340798 = weight(abstract_txt:facilities in 753) [ClassicSimilarity], result of:
            0.10340798 = score(doc=753,freq=1.0), product of:
              0.20999008 = queryWeight, product of:
                1.7657288 = boost
                6.30326 = idf(docFreq=219, maxDocs=44218)
                0.018867292 = queryNorm
              0.4924422 = fieldWeight in 753, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.30326 = idf(docFreq=219, maxDocs=44218)
                0.078125 = fieldNorm(doc=753)
          0.14026263 = weight(abstract_txt:catalogue in 753) [ClassicSimilarity], result of:
            0.14026263 = score(doc=753,freq=3.0), product of:
              0.20422743 = queryWeight, product of:
                2.1326878 = boost
                5.0754814 = idf(docFreq=750, maxDocs=44218)
                0.018867292 = queryNorm
              0.68679625 = fieldWeight in 753, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                5.0754814 = idf(docFreq=750, maxDocs=44218)
                0.078125 = fieldNorm(doc=753)
          0.18197979 = weight(abstract_txt:opac in 753) [ClassicSimilarity], result of:
            0.18197979 = score(doc=753,freq=3.0), product of:
              0.24294142 = queryWeight, product of:
                2.3260608 = boost
                5.53568 = idf(docFreq=473, maxDocs=44218)
                0.018867292 = queryNorm
              0.7490686 = fieldWeight in 753, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                5.53568 = idf(docFreq=473, maxDocs=44218)
                0.078125 = fieldNorm(doc=753)
          0.12796073 = weight(abstract_txt:subject in 753) [ClassicSimilarity], result of:
            0.12796073 = score(doc=753,freq=3.0), product of:
              0.24203634 = queryWeight, product of:
                3.2834132 = boost
                3.9070187 = idf(docFreq=2415, maxDocs=44218)
                0.018867292 = queryNorm
              0.52868396 = fieldWeight in 753, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                3.9070187 = idf(docFreq=2415, maxDocs=44218)
                0.078125 = fieldNorm(doc=753)
          0.070332214 = weight(abstract_txt:access in 753) [ClassicSimilarity], result of:
            0.070332214 = score(doc=753,freq=1.0), product of:
              0.24657837 = queryWeight, product of:
                3.5796134 = boost
                3.6509786 = idf(docFreq=3120, maxDocs=44218)
                0.018867292 = queryNorm
              0.2852327 = fieldWeight in 753, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.6509786 = idf(docFreq=3120, maxDocs=44218)
                0.078125 = fieldNorm(doc=753)
        0.32 = coord(8/25)
    
  5. Gödert, W.: ¬The design of subject access elements in online catalogues : Some problems (1991) 0.23
    0.22799458 = sum of:
      0.22799458 = product of:
        0.8142663 = sum of:
          0.030053979 = weight(abstract_txt:users in 5140) [ClassicSimilarity], result of:
            0.030053979 = score(doc=5140,freq=1.0), product of:
              0.06735204 = queryWeight, product of:
                3.569778 = idf(docFreq=3384, maxDocs=44218)
                0.018867292 = queryNorm
              0.44622225 = fieldWeight in 5140, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.569778 = idf(docFreq=3384, maxDocs=44218)
                0.125 = fieldNorm(doc=5140)
          0.06466229 = weight(abstract_txt:public in 5140) [ClassicSimilarity], result of:
            0.06466229 = score(doc=5140,freq=1.0), product of:
              0.11224927 = queryWeight, product of:
                1.2909707 = boost
                4.6084785 = idf(docFreq=1197, maxDocs=44218)
                0.018867292 = queryNorm
              0.5760598 = fieldWeight in 5140, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.6084785 = idf(docFreq=1197, maxDocs=44218)
                0.125 = fieldNorm(doc=5140)
          0.1410378 = weight(abstract_txt:line in 5140) [ClassicSimilarity], result of:
            0.1410378 = score(doc=5140,freq=1.0), product of:
              0.18878746 = queryWeight, product of:
                1.6742148 = boost
                5.9765754 = idf(docFreq=304, maxDocs=44218)
                0.018867292 = queryNorm
              0.7470719 = fieldWeight in 5140, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.9765754 = idf(docFreq=304, maxDocs=44218)
                0.125 = fieldNorm(doc=5140)
          0.07795413 = weight(abstract_txt:searching in 5140) [ClassicSimilarity], result of:
            0.07795413 = score(doc=5140,freq=1.0), product of:
              0.1455479 = queryWeight, product of:
                1.8004174 = boost
                4.284727 = idf(docFreq=1655, maxDocs=44218)
                0.018867292 = queryNorm
              0.5355909 = fieldWeight in 5140, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.284727 = idf(docFreq=1655, maxDocs=44218)
                0.125 = fieldNorm(doc=5140)
          0.11820506 = weight(abstract_txt:subject in 5140) [ClassicSimilarity], result of:
            0.11820506 = score(doc=5140,freq=1.0), product of:
              0.24203634 = queryWeight, product of:
                3.2834132 = boost
                3.9070187 = idf(docFreq=2415, maxDocs=44218)
                0.018867292 = queryNorm
              0.48837733 = fieldWeight in 5140, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.9070187 = idf(docFreq=2415, maxDocs=44218)
                0.125 = fieldNorm(doc=5140)
          0.2698215 = weight(abstract_txt:opacs in 5140) [ClassicSimilarity], result of:
            0.2698215 = score(doc=5140,freq=1.0), product of:
              0.36655894 = queryWeight, product of:
                3.299222 = boost
                5.888745 = idf(docFreq=332, maxDocs=44218)
                0.018867292 = queryNorm
              0.7360931 = fieldWeight in 5140, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.888745 = idf(docFreq=332, maxDocs=44218)
                0.125 = fieldNorm(doc=5140)
          0.11253154 = weight(abstract_txt:access in 5140) [ClassicSimilarity], result of:
            0.11253154 = score(doc=5140,freq=1.0), product of:
              0.24657837 = queryWeight, product of:
                3.5796134 = boost
                3.6509786 = idf(docFreq=3120, maxDocs=44218)
                0.018867292 = queryNorm
              0.45637232 = fieldWeight in 5140, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.6509786 = idf(docFreq=3120, maxDocs=44218)
                0.125 = fieldNorm(doc=5140)
        0.28 = coord(7/25)