M. Wimmer, H. Kargl, M. Seidl, T. Reiter, M. Strommer: Integration of Ontologies with CAR Mappings, First International Workshop on Semantic Technology Adoption in Business -- STAB'07, Wien; 31.05.2007 - 01.06.2007, in: The First International Workshop on Semantic Technology Adoption in Business, dapir academic press, (2007), ISBN: 978-82-519-2233-3; S. 27 - 38. pdf
CAR is a declarative language which can be used to map between different schemas in general and which allows the integration ofontologies in special. CAR provides mapping operators whose expressivity exceeds the possibilities of simple equivalence mappings by far. Due to the declarative nature of this approach, CAR which we implemented in a graphical mapping framework, offers a very user-friendly way to overcome schematic Heterogenities.Furthermore, the mappings can be executed on Colored Petri Nets, and therefore they can be easily simulated and debugged in a framework for representing schemas and mapping models as Transformation Nets which can be applied to transform concrete instances of schemas expressed as tokens.