Document (#15978)

Author

Mendelsohn, S.

Title

How do you evaluate a database before purchasing it?

Source

Information world review. 1996, no.115, S.28-29

Year

1996

Abstract

Presents the responses of 6 European information professionals on how they evaluate databases prior to purchasing. Factors considered include: cost; data quality; data structure; need evaluation; added value over other products; and number of potential users. Procedures employed include: user surveys; trial subscriptions and keeping up to date by going to conferences, networking with colleagues and reading the professional press

Similar documents (author)

1. Mendelsohn, S.: ¬The future of librarians (1994) 6.10

   6.0972233 = sum of:
     6.0972233 = weight(author_txt:mendelsohn in 34) [ClassicSimilarity], result of:
       6.0972233 = fieldWeight in 34, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         9.755557 = idf(docFreq=6, maxDocs=44421)
         0.625 = fieldNorm(doc=34)
   

2. Mendelsohn, J.: Human help at OPAC terminals is user friendly : a preliminary study (1994) 6.10

   6.0972233 = sum of:
     6.0972233 = weight(author_txt:mendelsohn in 1114) [ClassicSimilarity], result of:
       6.0972233 = fieldWeight in 1114, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         9.755557 = idf(docFreq=6, maxDocs=44421)
         0.625 = fieldNorm(doc=1114)
   

3. Mendelsohn, S.: Would you like the databases you regularly use to be multimedia? (1994) 6.10

   6.0972233 = sum of:
     6.0972233 = weight(author_txt:mendelsohn in 1555) [ClassicSimilarity], result of:
       6.0972233 = fieldWeight in 1555, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         9.755557 = idf(docFreq=6, maxDocs=44421)
         0.625 = fieldNorm(doc=1555)
   

4. Mendelsohn, S.: Should all librarians acquire the skills to educate and train end-users? (1996) 6.10

   6.0972233 = sum of:
     6.0972233 = weight(author_txt:mendelsohn in 6664) [ClassicSimilarity], result of:
       6.0972233 = fieldWeight in 6664, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         9.755557 = idf(docFreq=6, maxDocs=44421)
         0.625 = fieldNorm(doc=6664)
   

5. Mendelsohn, J.: Perspectives on quality of reference service in an academic library : a qualitative study (1997) 6.10

   6.0972233 = sum of:
     6.0972233 = weight(author_txt:mendelsohn in 1535) [ClassicSimilarity], result of:
       6.0972233 = fieldWeight in 1535, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         9.755557 = idf(docFreq=6, maxDocs=44421)
         0.625 = fieldNorm(doc=1535)
   

Similar documents (content)

1. Griffith, J.C.: Why not EDI? : One librarian's perspective (1996) 0.09

   0.08945921 = sum of:
     0.08945921 = product of:
       0.55912006 = sum of:
         0.05812394 = weight(abstract_txt:cost in 734) [ClassicSimilarity], result of:
           0.05812394 = score(doc=734,freq=1.0), product of:
             0.12954569 = queryWeight, product of:
               1.0604885 = boost
               5.743043 = idf(docFreq=386, maxDocs=44421)
               0.021270366 = queryNorm
             0.44867522 = fieldWeight in 734, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.743043 = idf(docFreq=386, maxDocs=44421)
               0.078125 = fieldNorm(doc=734)
         0.06827352 = weight(abstract_txt:added in 734) [ClassicSimilarity], result of:
           0.06827352 = score(doc=734,freq=1.0), product of:
             0.14421855 = queryWeight, product of:
               1.1189355 = boost
               6.059561 = idf(docFreq=281, maxDocs=44421)
               0.021270366 = queryNorm
             0.4734032 = fieldWeight in 734, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.059561 = idf(docFreq=281, maxDocs=44421)
               0.078125 = fieldNorm(doc=734)
         0.06824582 = weight(abstract_txt:include in 734) [ClassicSimilarity], result of:
           0.06824582 = score(doc=734,freq=1.0), product of:
             0.18165483 = queryWeight, product of:
               1.775959 = boost
               4.808826 = idf(docFreq=984, maxDocs=44421)
               0.021270366 = queryNorm
             0.37568954 = fieldWeight in 734, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.808826 = idf(docFreq=984, maxDocs=44421)
               0.078125 = fieldNorm(doc=734)
         0.36447674 = weight(abstract_txt:purchasing in 734) [ClassicSimilarity], result of:
           0.36447674 = score(doc=734,freq=1.0), product of:
             0.55502105 = queryWeight, product of:
               3.1043036 = boost
               8.405631 = idf(docFreq=26, maxDocs=44421)
               0.021270366 = queryNorm
             0.65668994 = fieldWeight in 734, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               8.405631 = idf(docFreq=26, maxDocs=44421)
               0.078125 = fieldNorm(doc=734)
       0.16 = coord(4/25)
   

2. Majka, D.R.: Remote host databases : issues and content (1997) 0.08

   0.08064902 = sum of:
     0.08064902 = product of:
       0.67207515 = sum of:
         0.07558059 = weight(abstract_txt:products in 6196) [ClassicSimilarity], result of:
           0.07558059 = score(doc=6196,freq=1.0), product of:
             0.12332215 = queryWeight, product of:
               1.0347013 = boost
               5.6033936 = idf(docFreq=444, maxDocs=44421)
               0.021270366 = queryNorm
             0.61287117 = fieldWeight in 6196, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.6033936 = idf(docFreq=444, maxDocs=44421)
               0.109375 = fieldNorm(doc=6196)
         0.08622714 = weight(abstract_txt:procedures in 6196) [ClassicSimilarity], result of:
           0.08622714 = score(doc=6196,freq=1.0), product of:
             0.13464707 = queryWeight, product of:
               1.0811673 = boost
               5.8550286 = idf(docFreq=345, maxDocs=44421)
               0.021270366 = queryNorm
             0.64039373 = fieldWeight in 6196, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.8550286 = idf(docFreq=345, maxDocs=44421)
               0.109375 = fieldNorm(doc=6196)
         0.51026744 = weight(abstract_txt:purchasing in 6196) [ClassicSimilarity], result of:
           0.51026744 = score(doc=6196,freq=1.0), product of:
             0.55502105 = queryWeight, product of:
               3.1043036 = boost
               8.405631 = idf(docFreq=26, maxDocs=44421)
               0.021270366 = queryNorm
             0.9193659 = fieldWeight in 6196, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               8.405631 = idf(docFreq=26, maxDocs=44421)
               0.109375 = fieldNorm(doc=6196)
       0.12 = coord(3/25)
   

3. Viswanathan, C.G.: Cataloguing:theory & practice (2007) 0.08

   0.075322196 = sum of:
     0.075322196 = product of:
       0.3138425 = sum of:
         0.04649915 = weight(abstract_txt:cost in 2475) [ClassicSimilarity], result of:
           0.04649915 = score(doc=2475,freq=1.0), product of:
             0.12954569 = queryWeight, product of:
               1.0604885 = boost
               5.743043 = idf(docFreq=386, maxDocs=44421)
               0.021270366 = queryNorm
             0.35894018 = fieldWeight in 2475, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.743043 = idf(docFreq=386, maxDocs=44421)
               0.0625 = fieldNorm(doc=2475)
         0.049272653 = weight(abstract_txt:procedures in 2475) [ClassicSimilarity], result of:
           0.049272653 = score(doc=2475,freq=1.0), product of:
             0.13464707 = queryWeight, product of:
               1.0811673 = boost
               5.8550286 = idf(docFreq=345, maxDocs=44421)
               0.021270366 = queryNorm
             0.3659393 = fieldWeight in 2475, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.8550286 = idf(docFreq=345, maxDocs=44421)
               0.0625 = fieldNorm(doc=2475)
         0.05405148 = weight(abstract_txt:date in 2475) [ClassicSimilarity], result of:
           0.05405148 = score(doc=2475,freq=1.0), product of:
             0.14321813 = queryWeight, product of:
               1.1150477 = boost
               6.038507 = idf(docFreq=287, maxDocs=44421)
               0.021270366 = queryNorm
             0.3774067 = fieldWeight in 2475, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.038507 = idf(docFreq=287, maxDocs=44421)
               0.0625 = fieldNorm(doc=2475)
         0.054618817 = weight(abstract_txt:added in 2475) [ClassicSimilarity], result of:
           0.054618817 = score(doc=2475,freq=1.0), product of:
             0.14421855 = queryWeight, product of:
               1.1189355 = boost
               6.059561 = idf(docFreq=281, maxDocs=44421)
               0.021270366 = queryNorm
             0.37872255 = fieldWeight in 2475, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.059561 = idf(docFreq=281, maxDocs=44421)
               0.0625 = fieldNorm(doc=2475)
         0.018133003 = weight(abstract_txt:data in 2475) [ClassicSimilarity], result of:
           0.018133003 = score(doc=2475,freq=1.0), product of:
             0.08711964 = queryWeight, product of:
               1.2298934 = boost
               3.3302255 = idf(docFreq=4320, maxDocs=44421)
               0.021270366 = queryNorm
             0.20813909 = fieldWeight in 2475, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.3302255 = idf(docFreq=4320, maxDocs=44421)
               0.0625 = fieldNorm(doc=2475)
         0.0912674 = weight(abstract_txt:colleagues in 2475) [ClassicSimilarity], result of:
           0.0912674 = score(doc=2475,freq=1.0), product of:
             0.20308135 = queryWeight, product of:
               1.3277903 = boost
               7.190608 = idf(docFreq=90, maxDocs=44421)
               0.021270366 = queryNorm
             0.449413 = fieldWeight in 2475, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               7.190608 = idf(docFreq=90, maxDocs=44421)
               0.0625 = fieldNorm(doc=2475)
       0.24 = coord(6/25)
   

4. European Working Group on retrospective cataloguing : final report (1992) 0.07

   0.073522024 = sum of:
     0.073522024 = product of:
       0.45951265 = sum of:
         0.06775357 = weight(abstract_txt:before in 8172) [ClassicSimilarity], result of:
           0.06775357 = score(doc=8172,freq=1.0), product of:
             0.12706332 = queryWeight, product of:
               1.0502787 = boost
               5.6877522 = idf(docFreq=408, maxDocs=44421)
               0.021270366 = queryNorm
             0.5332268 = fieldWeight in 8172, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.6877522 = idf(docFreq=408, maxDocs=44421)
               0.09375 = fieldNorm(doc=8172)
         0.1178089 = weight(abstract_txt:european in 8172) [ClassicSimilarity], result of:
           0.1178089 = score(doc=8172,freq=3.0), product of:
             0.12739247 = queryWeight, product of:
               1.0516381 = boost
               5.6951146 = idf(docFreq=405, maxDocs=44421)
               0.021270366 = queryNorm
             0.9247713 = fieldWeight in 8172, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               5.6951146 = idf(docFreq=405, maxDocs=44421)
               0.09375 = fieldNorm(doc=8172)
         0.06974874 = weight(abstract_txt:cost in 8172) [ClassicSimilarity], result of:
           0.06974874 = score(doc=8172,freq=1.0), product of:
             0.12954569 = queryWeight, product of:
               1.0604885 = boost
               5.743043 = idf(docFreq=386, maxDocs=44421)
               0.021270366 = queryNorm
             0.5384103 = fieldWeight in 8172, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.743043 = idf(docFreq=386, maxDocs=44421)
               0.09375 = fieldNorm(doc=8172)
         0.20420144 = weight(abstract_txt:press in 8172) [ClassicSimilarity], result of:
           0.20420144 = score(doc=8172,freq=2.0), product of:
             0.2104237 = queryWeight, product of:
               1.35158 = boost
               7.319441 = idf(docFreq=79, maxDocs=44421)
               0.021270366 = queryNorm
             0.9704299 = fieldWeight in 8172, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               7.319441 = idf(docFreq=79, maxDocs=44421)
               0.09375 = fieldNorm(doc=8172)
       0.16 = coord(4/25)
   

5. Robertson, S.E.: OKAPI at TREC-3 (1995) 0.07

   0.073373616 = sum of:
     0.073373616 = product of:
       0.4585851 = sum of:
         0.073908985 = weight(abstract_txt:procedures in 6694) [ClassicSimilarity], result of:
           0.073908985 = score(doc=6694,freq=1.0), product of:
             0.13464707 = queryWeight, product of:
               1.0811673 = boost
               5.8550286 = idf(docFreq=345, maxDocs=44421)
               0.021270366 = queryNorm
             0.54890895 = fieldWeight in 6694, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.8550286 = idf(docFreq=345, maxDocs=44421)
               0.09375 = fieldNorm(doc=6694)
         0.08432036 = weight(abstract_txt:prior in 6694) [ClassicSimilarity], result of:
           0.08432036 = score(doc=6694,freq=1.0), product of:
             0.14701232 = queryWeight, product of:
               1.1297213 = boost
               6.1179714 = idf(docFreq=265, maxDocs=44421)
               0.021270366 = queryNorm
             0.5735598 = fieldWeight in 6694, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.1179714 = idf(docFreq=265, maxDocs=44421)
               0.09375 = fieldNorm(doc=6694)
         0.122143306 = weight(abstract_txt:conferences in 6694) [ClassicSimilarity], result of:
           0.122143306 = score(doc=6694,freq=1.0), product of:
             0.18821108 = queryWeight, product of:
               1.2782537 = boost
               6.922344 = idf(docFreq=118, maxDocs=44421)
               0.021270366 = queryNorm
             0.64896977 = fieldWeight in 6694, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.922344 = idf(docFreq=118, maxDocs=44421)
               0.09375 = fieldNorm(doc=6694)
         0.17821246 = weight(abstract_txt:trial in 6694) [ClassicSimilarity], result of:
           0.17821246 = score(doc=6694,freq=1.0), product of:
             0.24211636 = queryWeight, product of:
               1.4497948 = boost
               7.85132 = idf(docFreq=46, maxDocs=44421)
               0.021270366 = queryNorm
             0.7360612 = fieldWeight in 6694, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               7.85132 = idf(docFreq=46, maxDocs=44421)
               0.09375 = fieldNorm(doc=6694)
       0.16 = coord(4/25)