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A mismatch description language for conceptual schema mapping and its cartographic representation

: Reitz, Thorsten

Fabrikant, S.I.:
Geographic information science. 6th international conference, GIScience 2010 : Zurich, Switzerland, September 14 - 17, 2010; proceedings
Berlin: Springer, 2010 (Lecture Notes in Computer Science 6292)
ISBN: 3-642-15299-6
ISBN: 978-3-642-15299-3
ISBN: 978-3-642-15300-6
ISSN: 0302-9743
International Conference on Geographic Information Science (GIScience) <6, 2010, Zurich>
Conference Paper
Fraunhofer IGD ()
geographic information systems (GIS); conceptual schema mapping; mismatch identification; data integration; transformations

Geospatial data offered by distributed services are often modelled with different conceptual schemas although they cover the same thematic area. To ensure interoperability of geospatial data, the existing heterogeneous conceptual schemas can be mapped to a common conceptual schema. However, the underlying formalized schema mappings are difficult to create, difficult to re-use and often contain mismatches of abstraction level, of scope difference, domain semantics and value semantics of the mapped entities. We have developed a novel approach to document and communicate such mismatches in the form of a Mismatch Description Language (MDL). This MDL can be transformed into various textual and cartographic representations to support users in communicating and understanding mismatches, and to assess the reusability of a mapping.