Document (#8401)

Author

Holm, L.A.

Title

Connectivity and protocols, the technical side : OSI and TCP/IP, FTP, TELNET, SR, ILL, update

Source

IFLA journal. 20(1994) no.2, S.158-170

Year

1994

Abstract

Describes a layer model for networks. For each layer, one or more services are defined, and for each service a protocol is specified. 2 OSI application level protocols have been defined for library services: SR and ILL. The underlying layers are supposed to be OSI services, but some implementations are using TCP/IP, and some are using a mixture of OSI and TCP/IP. The systems based directly on TCP/IP can not communicate with those based purely on OSI. Discusses the pros and cons for choosing OSI or TCP/IP. Gateways between the OSI and TCP/IP networks are needed. The ISO protocol SR and the ANSI protocol Z39.50 are both 'search and retrieve' protocols. The SR is almost a subst of Z39.50, but they may become identical in the future. There is only one protocol for interlibrary loan, the ISO ILL protocol. It covers 3 models of interlibrary loan and all services connected with ILL. Other services such as Explain, Scan and Update are presently being discussed in ISO TC 46. Discusses the needs of the library community for network services such as file transfer, remote login, directories and electronic mail

Theme

Datenfernübertragung
Internet

Object

SR
TCP/IP
OSI
ILL
Z39.50

Similar documents (author)

1. Holm, L.A.: Authority control in an international context in the new environment (1999) 6.19

   6.1935673 = sum of:
     6.1935673 = weight(author_txt:holm in 5569) [ClassicSimilarity], result of:
       6.1935673 = fieldWeight in 5569, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         9.909708 = idf(docFreq=5, maxDocs=44421)
         0.625 = fieldNorm(doc=5569)
   

2. Holm, L.A.: ONE project : results and experiences (1999) 6.19

   6.1935673 = sum of:
     6.1935673 = weight(author_txt:holm in 460) [ClassicSimilarity], result of:
       6.1935673 = fieldWeight in 460, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         9.909708 = idf(docFreq=5, maxDocs=44421)
         0.625 = fieldNorm(doc=460)
   

3. Holm, L.A.: Design of databases as good catalogues (1986) 6.19

   6.1935673 = sum of:
     6.1935673 = weight(author_txt:holm in 3010) [ClassicSimilarity], result of:
       6.1935673 = fieldWeight in 3010, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         9.909708 = idf(docFreq=5, maxDocs=44421)
         0.625 = fieldNorm(doc=3010)
   

4. Holm, B.E.; Rasmussen, L.E.: Development of a technical thesaurus (1961) 4.95

   4.954854 = sum of:
     4.954854 = weight(author_txt:holm in 7141) [ClassicSimilarity], result of:
       4.954854 = fieldWeight in 7141, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         9.909708 = idf(docFreq=5, maxDocs=44421)
         0.5 = fieldNorm(doc=7141)
   

Similar documents (content)

1. Ciardhuain, S.O.: Developments in networked bibliographic catalogues (1994) 0.20

   0.20446172 = sum of:
     0.20446172 = product of:
       1.0223086 = sum of:
         0.029252449 = weight(abstract_txt:discusses in 1657) [ClassicSimilarity], result of:
           0.029252449 = score(doc=1657,freq=1.0), product of:
             0.067716606 = queryWeight, product of:
               1.0557561 = boost
               3.9495623 = idf(docFreq=2325, maxDocs=44421)
               0.016239872 = queryNorm
             0.43198338 = fieldWeight in 1657, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.9495623 = idf(docFreq=2325, maxDocs=44421)
               0.109375 = fieldNorm(doc=1657)
         0.0641233 = weight(abstract_txt:networks in 1657) [ClassicSimilarity], result of:
           0.0641233 = score(doc=1657,freq=1.0), product of:
             0.11426966 = queryWeight, product of:
               1.3714547 = boost
               5.1305847 = idf(docFreq=713, maxDocs=44421)
               0.016239872 = queryNorm
             0.5611577 = fieldWeight in 1657, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.1305847 = idf(docFreq=713, maxDocs=44421)
               0.109375 = fieldNorm(doc=1657)
         0.24897045 = weight(abstract_txt:loan in 1657) [ClassicSimilarity], result of:
           0.24897045 = score(doc=1657,freq=1.0), product of:
             0.28228354 = queryWeight, product of:
               2.1555533 = boost
               8.063882 = idf(docFreq=37, maxDocs=44421)
               0.016239872 = queryNorm
             0.8819871 = fieldWeight in 1657, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               8.063882 = idf(docFreq=37, maxDocs=44421)
               0.109375 = fieldNorm(doc=1657)
         0.25666556 = weight(abstract_txt:interlibrary in 1657) [ClassicSimilarity], result of:
           0.25666556 = score(doc=1657,freq=1.0), product of:
             0.2880705 = queryWeight, product of:
               2.1775362 = boost
               8.146119 = idf(docFreq=34, maxDocs=44421)
               0.016239872 = queryNorm
             0.8909818 = fieldWeight in 1657, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               8.146119 = idf(docFreq=34, maxDocs=44421)
               0.109375 = fieldNorm(doc=1657)
         0.42329675 = weight(abstract_txt:protocols in 1657) [ClassicSimilarity], result of:
           0.42329675 = score(doc=1657,freq=3.0), product of:
             0.3191589 = queryWeight, product of:
               2.8071468 = boost
               7.000987 = idf(docFreq=109, maxDocs=44421)
               0.016239872 = queryNorm
             1.3262883 = fieldWeight in 1657, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               7.000987 = idf(docFreq=109, maxDocs=44421)
               0.109375 = fieldNorm(doc=1657)
       0.2 = coord(5/25)
   

2. Peare, J.D.T.: IRIS: a Z39.50 national information system (1995) 0.18

   0.18341374 = sum of:
     0.18341374 = product of:
       1.146336 = sum of:
         0.16923179 = weight(abstract_txt:z39.50 in 5799) [ClassicSimilarity], result of:
           0.16923179 = score(doc=5799,freq=1.0), product of:
             0.19963975 = queryWeight, product of:
               1.8127568 = boost
               6.7814865 = idf(docFreq=136, maxDocs=44421)
               0.016239872 = queryNorm
             0.8476858 = fieldWeight in 5799, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.7814865 = idf(docFreq=136, maxDocs=44421)
               0.125 = fieldNorm(doc=5799)
         0.28453764 = weight(abstract_txt:loan in 5799) [ClassicSimilarity], result of:
           0.28453764 = score(doc=5799,freq=1.0), product of:
             0.28228354 = queryWeight, product of:
               2.1555533 = boost
               8.063882 = idf(docFreq=37, maxDocs=44421)
               0.016239872 = queryNorm
             1.0079852 = fieldWeight in 5799, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               8.063882 = idf(docFreq=37, maxDocs=44421)
               0.125 = fieldNorm(doc=5799)
         0.29333207 = weight(abstract_txt:interlibrary in 5799) [ClassicSimilarity], result of:
           0.29333207 = score(doc=5799,freq=1.0), product of:
             0.2880705 = queryWeight, product of:
               2.1775362 = boost
               8.146119 = idf(docFreq=34, maxDocs=44421)
               0.016239872 = queryNorm
             1.0182649 = fieldWeight in 5799, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               8.146119 = idf(docFreq=34, maxDocs=44421)
               0.125 = fieldNorm(doc=5799)
         0.3992344 = weight(abstract_txt:protocol in 5799) [ClassicSimilarity], result of:
           0.3992344 = score(doc=5799,freq=1.0), product of:
             0.48016563 = queryWeight, product of:
               4.4451003 = boost
               6.651612 = idf(docFreq=155, maxDocs=44421)
               0.016239872 = queryNorm
             0.8314515 = fieldWeight in 5799, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.651612 = idf(docFreq=155, maxDocs=44421)
               0.125 = fieldNorm(doc=5799)
       0.16 = coord(4/25)
   

3. Dempsey, L.; Russell, R.; Kirriemur, J.W.: Towards distributed library systems : Z39.50 in a European context (1996) 0.18

   0.17550115 = sum of:
     0.17550115 = product of:
       1.0968822 = sum of:
         0.20941366 = weight(abstract_txt:z39.50 in 1127) [ClassicSimilarity], result of:
           0.20941366 = score(doc=1127,freq=2.0), product of:
             0.19963975 = queryWeight, product of:
               1.8127568 = boost
               6.7814865 = idf(docFreq=136, maxDocs=44421)
               0.016239872 = queryNorm
             1.0489577 = fieldWeight in 1127, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               6.7814865 = idf(docFreq=136, maxDocs=44421)
               0.109375 = fieldNorm(doc=1127)
         0.24439049 = weight(abstract_txt:protocols in 1127) [ClassicSimilarity], result of:
           0.24439049 = score(doc=1127,freq=1.0), product of:
             0.3191589 = queryWeight, product of:
               2.8071468 = boost
               7.000987 = idf(docFreq=109, maxDocs=44421)
               0.016239872 = queryNorm
             0.76573294 = fieldWeight in 1127, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               7.000987 = idf(docFreq=109, maxDocs=44421)
               0.109375 = fieldNorm(doc=1127)
         0.14905071 = weight(abstract_txt:services in 1127) [ClassicSimilarity], result of:
           0.14905071 = score(doc=1127,freq=2.0), product of:
             0.22953036 = queryWeight, product of:
               3.3666403 = boost
               4.198178 = idf(docFreq=1813, maxDocs=44421)
               0.016239872 = queryNorm
             0.6493725 = fieldWeight in 1127, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.198178 = idf(docFreq=1813, maxDocs=44421)
               0.109375 = fieldNorm(doc=1127)
         0.49402738 = weight(abstract_txt:protocol in 1127) [ClassicSimilarity], result of:
           0.49402738 = score(doc=1127,freq=2.0), product of:
             0.48016563 = queryWeight, product of:
               4.4451003 = boost
               6.651612 = idf(docFreq=155, maxDocs=44421)
               0.016239872 = queryNorm
             1.0288687 = fieldWeight in 1127, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               6.651612 = idf(docFreq=155, maxDocs=44421)
               0.109375 = fieldNorm(doc=1127)
       0.16 = coord(4/25)
   

4. Leon, R.E.: ¬The Internet world : its protocols and mainstream services (1994) 0.16

   0.16309524 = sum of:
     0.16309524 = product of:
       0.8154762 = sum of:
         0.06851852 = weight(abstract_txt:telnet in 748) [ClassicSimilarity], result of:
           0.06851852 = score(doc=748,freq=1.0), product of:
             0.13765998 = queryWeight, product of:
               1.0644 = boost
               7.963798 = idf(docFreq=41, maxDocs=44421)
               0.016239872 = queryNorm
             0.49773738 = fieldWeight in 748, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               7.963798 = idf(docFreq=41, maxDocs=44421)
               0.0625 = fieldNorm(doc=748)
         0.018942837 = weight(abstract_txt:each in 748) [ClassicSimilarity], result of:
           0.018942837 = score(doc=748,freq=1.0), product of:
             0.0736053 = queryWeight, product of:
               1.100704 = boost
               4.1177115 = idf(docFreq=1965, maxDocs=44421)
               0.016239872 = queryNorm
             0.25735697 = fieldWeight in 748, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.1177115 = idf(docFreq=1965, maxDocs=44421)
               0.0625 = fieldNorm(doc=748)
         0.13965172 = weight(abstract_txt:protocols in 748) [ClassicSimilarity], result of:
           0.13965172 = score(doc=748,freq=1.0), product of:
             0.3191589 = queryWeight, product of:
               2.8071468 = boost
               7.000987 = idf(docFreq=109, maxDocs=44421)
               0.016239872 = queryNorm
             0.4375617 = fieldWeight in 748, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               7.000987 = idf(docFreq=109, maxDocs=44421)
               0.0625 = fieldNorm(doc=748)
         0.06022558 = weight(abstract_txt:services in 748) [ClassicSimilarity], result of:
           0.06022558 = score(doc=748,freq=1.0), product of:
             0.22953036 = queryWeight, product of:
               3.3666403 = boost
               4.198178 = idf(docFreq=1813, maxDocs=44421)
               0.016239872 = queryNorm
             0.2623861 = fieldWeight in 748, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.198178 = idf(docFreq=1813, maxDocs=44421)
               0.0625 = fieldNorm(doc=748)
         0.5281375 = weight(abstract_txt:protocol in 748) [ClassicSimilarity], result of:
           0.5281375 = score(doc=748,freq=7.0), product of:
             0.48016563 = queryWeight, product of:
               4.4451003 = boost
               6.651612 = idf(docFreq=155, maxDocs=44421)
               0.016239872 = queryNorm
             1.0999069 = fieldWeight in 748, product of:
               2.6457512 = tf(freq=7.0), with freq of:
                 7.0 = termFreq=7.0
               6.651612 = idf(docFreq=155, maxDocs=44421)
               0.0625 = fieldNorm(doc=748)
       0.2 = coord(5/25)
   

5. Turner, F.: Z39.50 and information retrieval toolkit software (1994) 0.16

   0.15682271 = sum of:
     0.15682271 = product of:
       0.980142 = sum of:
         0.13917041 = weight(abstract_txt:ansi in 1016) [ClassicSimilarity], result of:
           0.13917041 = score(doc=1016,freq=1.0), product of:
             0.15203431 = queryWeight, product of:
               1.1185923 = boost
               8.369263 = idf(docFreq=27, maxDocs=44421)
               0.016239872 = queryNorm
             0.9153881 = fieldWeight in 1016, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               8.369263 = idf(docFreq=27, maxDocs=44421)
               0.109375 = fieldNorm(doc=1016)
         0.14807782 = weight(abstract_txt:z39.50 in 1016) [ClassicSimilarity], result of:
           0.14807782 = score(doc=1016,freq=1.0), product of:
             0.19963975 = queryWeight, product of:
               1.8127568 = boost
               6.7814865 = idf(docFreq=136, maxDocs=44421)
               0.016239872 = queryNorm
             0.7417251 = fieldWeight in 1016, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.7814865 = idf(docFreq=136, maxDocs=44421)
               0.109375 = fieldNorm(doc=1016)
         0.1988664 = weight(abstract_txt:layer in 1016) [ClassicSimilarity], result of:
           0.1988664 = score(doc=1016,freq=1.0), product of:
             0.24301215 = queryWeight, product of:
               2.0 = boost
               7.48196 = idf(docFreq=67, maxDocs=44421)
               0.016239872 = queryNorm
             0.81833935 = fieldWeight in 1016, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               7.48196 = idf(docFreq=67, maxDocs=44421)
               0.109375 = fieldNorm(doc=1016)
         0.49402738 = weight(abstract_txt:protocol in 1016) [ClassicSimilarity], result of:
           0.49402738 = score(doc=1016,freq=2.0), product of:
             0.48016563 = queryWeight, product of:
               4.4451003 = boost
               6.651612 = idf(docFreq=155, maxDocs=44421)
               0.016239872 = queryNorm
             1.0288687 = fieldWeight in 1016, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               6.651612 = idf(docFreq=155, maxDocs=44421)
               0.109375 = fieldNorm(doc=1016)
       0.16 = coord(4/25)