Document (#30592)

Author

Cousins, S.
Sanders, A.

Title

Incorporating a virtual union catalogue into the wider information environment through the application of middleware: Interoperability issues in cross-database access

Source

Journal of documentation. 62(2006) no.1, S.120-144

Year

2006

Abstract

Purpose - To explore the use of middleware to provide access to a virtual catalogue via Z39.50, allowing its integration with other services. To consider issues arising from the cross-database search process and the problem of interoperability between systems. Design/methodology/approach - Middleware was used to establish a Z39.50 server for an existing virtual union catalogue, InforM25. The Copac physical union catalogue was used to carry out cross-database search tests, investigating the value of query transformation by the middleware and illustrating many of the issues associated with interoperability in cross-database searching. Findings - The test results demonstrate the viability and benefits of using middleware to allow the integration of virtual catalogues with other services. The results also illustrate the range of issues affecting the performance of the virtual catalogue, with supporting evidence from the use of the Copac physical union catalogue for cross-database searching via Z39.50. In particular the discussion highlights the issue of semantic interoperability, as well as emphasising the value of centralised virtual catalogue support. Research limitations/implications - The research was limited to work on a specific virtual union catalogue, that is InforM25, but the results highlight issues with general relevance in the development of any virtual catalogue. The need for more work on response times in the virtual union catalogue is apparent, along with the related issue of result set post processing. Originality/value - This paper provides a practical demonstration of the issues important to those involved in making their local catalogue accessible to services, and individuals, outside their own institution, as well as those working on virtual union catalogue development.

Theme

Verteilte bibliographische Datenbanken

Object

Z39.50

Similar documents (author)

1. Cousins, S.A.: Enhancing subject access to OPACs : controlled vocabulary vs. natural language (1992) 5.81

   5.81187 = sum of:
     5.81187 = weight(author_txt:cousins in 2230) [ClassicSimilarity], result of:
       5.81187 = fieldWeight in 2230, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         9.298992 = idf(docFreq=10, maxDocs=44218)
         0.625 = fieldNorm(doc=2230)
   

2. Cousins, S.A.: In their own words : an examination of catalogue users' subject queries (1992) 5.81

   5.81187 = sum of:
     5.81187 = weight(author_txt:cousins in 2621) [ClassicSimilarity], result of:
       5.81187 = fieldWeight in 2621, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         9.298992 = idf(docFreq=10, maxDocs=44218)
         0.625 = fieldNorm(doc=2621)
   

3. Cousins, S.A.: In their own words : an examination of catalogue subject queries (1992) 5.81

   5.81187 = sum of:
     5.81187 = weight(author_txt:cousins in 3731) [ClassicSimilarity], result of:
       5.81187 = fieldWeight in 3731, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         9.298992 = idf(docFreq=10, maxDocs=44218)
         0.625 = fieldNorm(doc=3731)
   

4. Cousins, G.: Professional indexing in Australia : first steps towards accreditation (1993) 5.81

   5.81187 = sum of:
     5.81187 = weight(author_txt:cousins in 7651) [ClassicSimilarity], result of:
       5.81187 = fieldWeight in 7651, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         9.298992 = idf(docFreq=10, maxDocs=44218)
         0.625 = fieldNorm(doc=7651)
   

5. Cousins, S.: COPAC: new research library union catalogue (1997) 5.81

   5.81187 = sum of:
     5.81187 = weight(author_txt:cousins in 664) [ClassicSimilarity], result of:
       5.81187 = fieldWeight in 664, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         9.298992 = idf(docFreq=10, maxDocs=44218)
         0.625 = fieldNorm(doc=664)
   

Similar documents (content)

1. Lunau, C.D.; Turner, F.: vCuc pilot project : status report and preliminary identification (1997) 0.39

   0.38776335 = sum of:
     0.38776335 = product of:
       1.6156807 = sum of:
         0.024707627 = weight(abstract_txt:searching in 133) [ClassicSimilarity], result of:
           0.024707627 = score(doc=133,freq=1.0), product of:
             0.04613153 = queryWeight, product of:
               1.1136209 = boost
               4.284727 = idf(docFreq=1655, maxDocs=44218)
               0.009668015 = queryNorm
             0.5355909 = fieldWeight in 133, 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=133)
         0.014718511 = weight(abstract_txt:with in 133) [ClassicSimilarity], result of:
           0.014718511 = score(doc=133,freq=1.0), product of:
             0.047104258 = queryWeight, product of:
               1.9490777 = boost
               2.4997334 = idf(docFreq=9868, maxDocs=44218)
               0.009668015 = queryNorm
             0.31246668 = fieldWeight in 133, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               2.4997334 = idf(docFreq=9868, maxDocs=44218)
               0.125 = fieldNorm(doc=133)
         0.14663824 = weight(abstract_txt:z39.50 in 133) [ClassicSimilarity], result of:
           0.14663824 = score(doc=133,freq=1.0), product of:
             0.17310347 = queryWeight, product of:
               2.6420252 = boost
               6.7769065 = idf(docFreq=136, maxDocs=44218)
               0.009668015 = queryNorm
             0.8471133 = fieldWeight in 133, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.7769065 = idf(docFreq=136, maxDocs=44218)
               0.125 = fieldNorm(doc=133)
         0.4959734 = weight(abstract_txt:union in 133) [ClassicSimilarity], result of:
           0.4959734 = score(doc=133,freq=4.0), product of:
             0.32590082 = queryWeight, product of:
               5.5375185 = boost
               6.087415 = idf(docFreq=272, maxDocs=44218)
               0.009668015 = queryNorm
             1.5218538 = fieldWeight in 133, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               6.087415 = idf(docFreq=272, maxDocs=44218)
               0.125 = fieldNorm(doc=133)
         0.44083866 = weight(abstract_txt:virtual in 133) [ClassicSimilarity], result of:
           0.44083866 = score(doc=133,freq=2.0), product of:
             0.4275074 = queryWeight, product of:
               7.580455 = boost
               5.8332562 = idf(docFreq=351, maxDocs=44218)
               0.009668015 = queryNorm
             1.0311837 = fieldWeight in 133, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               5.8332562 = idf(docFreq=351, maxDocs=44218)
               0.125 = fieldNorm(doc=133)
         0.49280435 = weight(abstract_txt:catalogue in 133) [ClassicSimilarity], result of:
           0.49280435 = score(doc=133,freq=4.0), product of:
             0.38838038 = queryWeight, product of:
               7.91485 = boost
               5.0754814 = idf(docFreq=750, maxDocs=44218)
               0.009668015 = queryNorm
             1.2688704 = fieldWeight in 133, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               5.0754814 = idf(docFreq=750, maxDocs=44218)
               0.125 = fieldNorm(doc=133)
       0.24 = coord(6/25)
   

2. Lunau, C.D.: ¬The virtual Canadian union catalogue pilot project : a partnership between libraries and vendors (1998) 0.29

   0.28515637 = sum of:
     0.28515637 = product of:
       1.0184156 = sum of:
         0.013417765 = weight(abstract_txt:development in 4638) [ClassicSimilarity], result of:
           0.013417765 = score(doc=4638,freq=1.0), product of:
             0.0371983 = queryWeight, product of:
               3.8475635 = idf(docFreq=2563, maxDocs=44218)
               0.009668015 = queryNorm
             0.36070907 = fieldWeight in 4638, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.8475635 = idf(docFreq=2563, maxDocs=44218)
               0.09375 = fieldNorm(doc=4638)
         0.03503729 = weight(abstract_txt:integration in 4638) [ClassicSimilarity], result of:
           0.03503729 = score(doc=4638,freq=1.0), product of:
             0.07053803 = queryWeight, product of:
               1.3770512 = boost
               5.298292 = idf(docFreq=600, maxDocs=44218)
               0.009668015 = queryNorm
             0.4967149 = fieldWeight in 4638, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.298292 = idf(docFreq=600, maxDocs=44218)
               0.09375 = fieldNorm(doc=4638)
         0.15553336 = weight(abstract_txt:z39.50 in 4638) [ClassicSimilarity], result of:
           0.15553336 = score(doc=4638,freq=2.0), product of:
             0.17310347 = queryWeight, product of:
               2.6420252 = boost
               6.7769065 = idf(docFreq=136, maxDocs=44218)
               0.009668015 = queryNorm
             0.89849937 = fieldWeight in 4638, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               6.7769065 = idf(docFreq=136, maxDocs=44218)
               0.09375 = fieldNorm(doc=4638)
         0.056258556 = weight(abstract_txt:issues in 4638) [ClassicSimilarity], result of:
           0.056258556 = score(doc=4638,freq=1.0), product of:
             0.13949837 = queryWeight, product of:
               3.3541589 = boost
               4.3017797 = idf(docFreq=1627, maxDocs=44218)
               0.009668015 = queryNorm
             0.40329185 = fieldWeight in 4638, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.3017797 = idf(docFreq=1627, maxDocs=44218)
               0.09375 = fieldNorm(doc=4638)
         0.2630296 = weight(abstract_txt:union in 4638) [ClassicSimilarity], result of:
           0.2630296 = score(doc=4638,freq=2.0), product of:
             0.32590082 = queryWeight, product of:
               5.5375185 = boost
               6.087415 = idf(docFreq=272, maxDocs=44218)
               0.009668015 = queryNorm
             0.8070848 = fieldWeight in 4638, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               6.087415 = idf(docFreq=272, maxDocs=44218)
               0.09375 = fieldNorm(doc=4638)
         0.23379003 = weight(abstract_txt:virtual in 4638) [ClassicSimilarity], result of:
           0.23379003 = score(doc=4638,freq=1.0), product of:
             0.4275074 = queryWeight, product of:
               7.580455 = boost
               5.8332562 = idf(docFreq=351, maxDocs=44218)
               0.009668015 = queryNorm
             0.5468678 = fieldWeight in 4638, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.8332562 = idf(docFreq=351, maxDocs=44218)
               0.09375 = fieldNorm(doc=4638)
         0.26134896 = weight(abstract_txt:catalogue in 4638) [ClassicSimilarity], result of:
           0.26134896 = score(doc=4638,freq=2.0), product of:
             0.38838038 = queryWeight, product of:
               7.91485 = boost
               5.0754814 = idf(docFreq=750, maxDocs=44218)
               0.009668015 = queryNorm
             0.6729201 = fieldWeight in 4638, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               5.0754814 = idf(docFreq=750, maxDocs=44218)
               0.09375 = fieldNorm(doc=4638)
       0.28 = coord(7/25)
   

3. Mowat, I.R.M.: ¬A national union catalogue : the ? edition (1996) 0.25

   0.24532087 = sum of:
     0.24532087 = product of:
       1.0221703 = sum of:
         0.013417765 = weight(abstract_txt:development in 7227) [ClassicSimilarity], result of:
           0.013417765 = score(doc=7227,freq=1.0), product of:
             0.0371983 = queryWeight, product of:
               3.8475635 = idf(docFreq=2563, maxDocs=44218)
               0.009668015 = queryNorm
             0.36070907 = fieldWeight in 7227, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.8475635 = idf(docFreq=2563, maxDocs=44218)
               0.09375 = fieldNorm(doc=7227)
         0.026111484 = weight(abstract_txt:services in 7227) [ClassicSimilarity], result of:
           0.026111484 = score(doc=7227,freq=1.0), product of:
             0.06637244 = queryWeight, product of:
               1.6359799 = boost
               4.1963577 = idf(docFreq=1808, maxDocs=44218)
               0.009668015 = queryNorm
             0.39340854 = fieldWeight in 7227, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.1963577 = idf(docFreq=1808, maxDocs=44218)
               0.09375 = fieldNorm(doc=7227)
         0.37829262 = weight(abstract_txt:copac in 7227) [ClassicSimilarity], result of:
           0.37829262 = score(doc=7227,freq=3.0), product of:
             0.23891743 = queryWeight, product of:
               2.5343254 = boost
               9.7509775 = idf(docFreq=6, maxDocs=44218)
               0.009668015 = queryNorm
             1.5833614 = fieldWeight in 7227, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               9.7509775 = idf(docFreq=6, maxDocs=44218)
               0.09375 = fieldNorm(doc=7227)
         0.07996991 = weight(abstract_txt:database in 7227) [ClassicSimilarity], result of:
           0.07996991 = score(doc=7227,freq=3.0), product of:
             0.11506953 = queryWeight, product of:
               2.7809207 = boost
               4.2799077 = idf(docFreq=1663, maxDocs=44218)
               0.009668015 = queryNorm
             0.69497037 = fieldWeight in 7227, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               4.2799077 = idf(docFreq=1663, maxDocs=44218)
               0.09375 = fieldNorm(doc=7227)
         0.2630296 = weight(abstract_txt:union in 7227) [ClassicSimilarity], result of:
           0.2630296 = score(doc=7227,freq=2.0), product of:
             0.32590082 = queryWeight, product of:
               5.5375185 = boost
               6.087415 = idf(docFreq=272, maxDocs=44218)
               0.009668015 = queryNorm
             0.8070848 = fieldWeight in 7227, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               6.087415 = idf(docFreq=272, maxDocs=44218)
               0.09375 = fieldNorm(doc=7227)
         0.26134896 = weight(abstract_txt:catalogue in 7227) [ClassicSimilarity], result of:
           0.26134896 = score(doc=7227,freq=2.0), product of:
             0.38838038 = queryWeight, product of:
               7.91485 = boost
               5.0754814 = idf(docFreq=750, maxDocs=44218)
               0.009668015 = queryNorm
             0.6729201 = fieldWeight in 7227, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               5.0754814 = idf(docFreq=750, maxDocs=44218)
               0.09375 = fieldNorm(doc=7227)
       0.24 = coord(6/25)
   

4. Panchyshyn, R.: OCLC now offers Z39.50 cataloging access to WorldCat (1998) 0.24

   0.24487346 = sum of:
     0.24487346 = product of:
       0.8745481 = sum of:
         0.024707627 = weight(abstract_txt:searching in 3211) [ClassicSimilarity], result of:
           0.024707627 = score(doc=3211,freq=1.0), product of:
             0.04613153 = queryWeight, product of:
               1.1136209 = boost
               4.284727 = idf(docFreq=1655, maxDocs=44218)
               0.009668015 = queryNorm
             0.5355909 = fieldWeight in 3211, 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=3211)
         0.02518729 = weight(abstract_txt:those in 3211) [ClassicSimilarity], result of:
           0.02518729 = score(doc=3211,freq=1.0), product of:
             0.046726666 = queryWeight, product of:
               1.1207812 = boost
               4.312277 = idf(docFreq=1610, maxDocs=44218)
               0.009668015 = queryNorm
             0.5390346 = fieldWeight in 3211, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.312277 = idf(docFreq=1610, maxDocs=44218)
               0.125 = fieldNorm(doc=3211)
         0.014718511 = weight(abstract_txt:with in 3211) [ClassicSimilarity], result of:
           0.014718511 = score(doc=3211,freq=1.0), product of:
             0.047104258 = queryWeight, product of:
               1.9490777 = boost
               2.4997334 = idf(docFreq=9868, maxDocs=44218)
               0.009668015 = queryNorm
             0.31246668 = fieldWeight in 3211, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               2.4997334 = idf(docFreq=9868, maxDocs=44218)
               0.125 = fieldNorm(doc=3211)
         0.2539849 = weight(abstract_txt:z39.50 in 3211) [ClassicSimilarity], result of:
           0.2539849 = score(doc=3211,freq=3.0), product of:
             0.17310347 = queryWeight, product of:
               2.6420252 = boost
               6.7769065 = idf(docFreq=136, maxDocs=44218)
               0.009668015 = queryNorm
             1.4672433 = fieldWeight in 3211, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               6.7769065 = idf(docFreq=136, maxDocs=44218)
               0.125 = fieldNorm(doc=3211)
         0.061560873 = weight(abstract_txt:database in 3211) [ClassicSimilarity], result of:
           0.061560873 = score(doc=3211,freq=1.0), product of:
             0.11506953 = queryWeight, product of:
               2.7809207 = boost
               4.2799077 = idf(docFreq=1663, maxDocs=44218)
               0.009668015 = queryNorm
             0.53498846 = fieldWeight in 3211, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.2799077 = idf(docFreq=1663, maxDocs=44218)
               0.125 = fieldNorm(doc=3211)
         0.2479867 = weight(abstract_txt:union in 3211) [ClassicSimilarity], result of:
           0.2479867 = score(doc=3211,freq=1.0), product of:
             0.32590082 = queryWeight, product of:
               5.5375185 = boost
               6.087415 = idf(docFreq=272, maxDocs=44218)
               0.009668015 = queryNorm
             0.7609269 = fieldWeight in 3211, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.087415 = idf(docFreq=272, maxDocs=44218)
               0.125 = fieldNorm(doc=3211)
         0.24640217 = weight(abstract_txt:catalogue in 3211) [ClassicSimilarity], result of:
           0.24640217 = score(doc=3211,freq=1.0), product of:
             0.38838038 = queryWeight, product of:
               7.91485 = boost
               5.0754814 = idf(docFreq=750, maxDocs=44218)
               0.009668015 = queryNorm
             0.6344352 = fieldWeight in 3211, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.0754814 = idf(docFreq=750, maxDocs=44218)
               0.125 = fieldNorm(doc=3211)
       0.28 = coord(7/25)
   

5. Coyle, K.: ¬The virtual union catalog : a comparative study (2000) 0.21

   0.20565702 = sum of:
     0.20565702 = product of:
       0.85690427 = sum of:
         0.011704153 = weight(abstract_txt:well in 1230) [ClassicSimilarity], result of:
           0.011704153 = score(doc=1230,freq=1.0), product of:
             0.038348686 = queryWeight, product of:
               1.0153451 = boost
               3.9066048 = idf(docFreq=2416, maxDocs=44218)
               0.009668015 = queryNorm
             0.3052035 = fieldWeight in 1230, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.9066048 = idf(docFreq=2416, maxDocs=44218)
               0.078125 = fieldNorm(doc=1230)
         0.015442266 = weight(abstract_txt:searching in 1230) [ClassicSimilarity], result of:
           0.015442266 = score(doc=1230,freq=1.0), product of:
             0.04613153 = queryWeight, product of:
               1.1136209 = boost
               4.284727 = idf(docFreq=1655, maxDocs=44218)
               0.009668015 = queryNorm
             0.3347443 = fieldWeight in 1230, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.284727 = idf(docFreq=1655, maxDocs=44218)
               0.078125 = fieldNorm(doc=1230)
         0.09164891 = weight(abstract_txt:z39.50 in 1230) [ClassicSimilarity], result of:
           0.09164891 = score(doc=1230,freq=1.0), product of:
             0.17310347 = queryWeight, product of:
               2.6420252 = boost
               6.7769065 = idf(docFreq=136, maxDocs=44218)
               0.009668015 = queryNorm
             0.5294458 = fieldWeight in 1230, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.7769065 = idf(docFreq=136, maxDocs=44218)
               0.078125 = fieldNorm(doc=1230)
         0.038475543 = weight(abstract_txt:database in 1230) [ClassicSimilarity], result of:
           0.038475543 = score(doc=1230,freq=1.0), product of:
             0.11506953 = queryWeight, product of:
               2.7809207 = boost
               4.2799077 = idf(docFreq=1663, maxDocs=44218)
               0.009668015 = queryNorm
             0.33436778 = fieldWeight in 1230, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.2799077 = idf(docFreq=1663, maxDocs=44218)
               0.078125 = fieldNorm(doc=1230)
         0.30998337 = weight(abstract_txt:union in 1230) [ClassicSimilarity], result of:
           0.30998337 = score(doc=1230,freq=4.0), product of:
             0.32590082 = queryWeight, product of:
               5.5375185 = boost
               6.087415 = idf(docFreq=272, maxDocs=44218)
               0.009668015 = queryNorm
             0.95115864 = fieldWeight in 1230, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               6.087415 = idf(docFreq=272, maxDocs=44218)
               0.078125 = fieldNorm(doc=1230)
         0.38965002 = weight(abstract_txt:virtual in 1230) [ClassicSimilarity], result of:
           0.38965002 = score(doc=1230,freq=4.0), product of:
             0.4275074 = queryWeight, product of:
               7.580455 = boost
               5.8332562 = idf(docFreq=351, maxDocs=44218)
               0.009668015 = queryNorm
             0.9114463 = fieldWeight in 1230, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               5.8332562 = idf(docFreq=351, maxDocs=44218)
               0.078125 = fieldNorm(doc=1230)
       0.24 = coord(6/25)