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{{More footnotes needed|date=February 2021}} |
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The '''Coverage''' of an [[Information system]] is a criterion for the completeness of the records in the information system. |
The '''Coverage''' of an [[Information system]] is a criterion for the completeness of the records in the information system. |
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It is defined as the ratio of the number of [[Instance (computer science)|instances]]/[[Record (computer science)|records]] in the system (mostly implemented as a [[Database]]) that represent real world [[Entity class|entities]] and the number of entities that exist (in the real world) and should be represented in the information system according to its [[Intention|purpose]]. |
It is defined as the ratio of the number of [[Instance (computer science)|instances]]/[[Record (computer science)|records]] in the system (mostly implemented as a [[Database]]) that represent real world [[Entity class|entities]] and the number of entities that exist (in the real world) and should be represented in the information system according to its [[Intention|purpose]]. |
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Example: If there are 170 countries in the world and an information system holds 153 country records then the coverage of countries of this information system is 90%. |
Example: If there are 170 countries in the world and an information system holds 153 country records then the coverage of countries of this information system is 90%. |
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== Bibliography == |
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* https://www.phil-fak.uni-duesseldorf.de/fileadmin/Redaktion/Institute/Informationswissenschaft/stock/271.pdf |
* https://www.phil-fak.uni-duesseldorf.de/fileadmin/Redaktion/Institute/Informationswissenschaft/stock/271.pdf |
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* {{cite journal | last1=Hood | first1=William W. | last2=Wilson | first2=Concepción S. | title=Informetric studies using databases: Opportunities and challenges | journal=Scientometrics | publisher=Springer Science and Business Media LLC | volume=58 | issue=3 | year=2003 | issn=0138-9130 | doi=10.1023/b:scie.0000006882.47115.c6 | pages=587–608| s2cid=12388738 }} |
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* {{cite journal | last1=Naumann | first1=Felix | last2=Freytag | first2=Johann-Christoph | last3=Leser | first3=Ulf | title=Completeness of integrated information sources | journal=Information Systems | publisher=Elsevier BV | volume=29 | issue=7 | year=2004 | issn=0306-4379 | doi=10.1016/j.is.2003.12.005 | pages=583–615| url=http://edoc.hu-berlin.de/18452/9840 }} |
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==References== |
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{{Reflist}} |
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[[Category:Information systems]] |
[[Category:Information systems]] |
Latest revision as of 12:36, 20 February 2021
This article includes a list of general references, but it lacks sufficient corresponding inline citations. (February 2021) |
The Coverage of an Information system is a criterion for the completeness of the records in the information system. It is defined as the ratio of the number of instances/records in the system (mostly implemented as a Database) that represent real world entities and the number of entities that exist (in the real world) and should be represented in the information system according to its purpose.
Example: If there are 170 countries in the world and an information system holds 153 country records then the coverage of countries of this information system is 90%.
Bibliography
[edit]- https://www.phil-fak.uni-duesseldorf.de/fileadmin/Redaktion/Institute/Informationswissenschaft/stock/271.pdf
- Hood, William W.; Wilson, Concepción S. (2003). "Informetric studies using databases: Opportunities and challenges". Scientometrics. 58 (3). Springer Science and Business Media LLC: 587–608. doi:10.1023/b:scie.0000006882.47115.c6. ISSN 0138-9130. S2CID 12388738.
- Naumann, Felix; Freytag, Johann-Christoph; Leser, Ulf (2004). "Completeness of integrated information sources". Information Systems. 29 (7). Elsevier BV: 583–615. doi:10.1016/j.is.2003.12.005. ISSN 0306-4379.