The history of European land monitoring is a story of permanent evolution of approaches and concepts, resulting in different solutions for individual needs and specifications. In this context the CoORdination of Information on the Environment (CORINE) Land Cover (CLC) specification provided the first set of European-wide accepted de facto standards, that is, a nomenclature of land cover (LC) classes, a geometric specification, an approach for land cover change (LCC) mapping, and a conceptual data model (Heymann et al., 1994).