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Data Integration

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dc.creator Wright, Dawn
dc.date.accessioned 2010-11-01T16:44:38Z
dc.date.available 2010-11-01T16:44:38Z
dc.date.issued 2007
dc.identifier.citation Wright, D.J., Data integration, in Kemp, K. (ed.), Encyclopedia of Geographic Information Science, Thousand Oaks, CA, Sage Publications, 78-80. en_US
dc.identifier.uri http://hdl.handle.net/1957/19045
dc.description.abstract Data integration is the process of combining data of different themes, content, scale or spatial extent, projections, acquisition methods, formats, schema, or even levels of uncertainty, so that they can be understood and analyzed. There is often a common display method used with integrated datasets that, although they are not fully processed, allows information to be passed between them. Integrating different types of data in a GIS often provides more information and insight than can be obtained by considering each type of data separately. It also aids in the detection and removal of redundancies or inaccuracies in the data (in both location and attribute). The layer stack concept that is so illustrative of GIS (often implying the overlay of maps) helps one to understand data integration in a vertical sense. It will often take place in a horizontal sense also, such as the matching together of adjacent map edges. Data integration is one of the main reasons why GIS software is used, and must often take place before spatial analysis can be performed on the data. en_US
dc.language.iso en_US en_US
dc.publisher SAGE Publications en_US
dc.subject data integration en_US
dc.subject geographic information systems en_US
dc.subject GIS en_US
dc.title Data Integration en_US
dc.type Article en_US


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