Conceptual Modeling of Spatial Database Based on Geographic Ontology

The ontological ideology and methodology are introduced into the geographic information domain, and the exact meaning and its formal represented language of geographic ontology are discussed. The characters of spatial E-R model are clarified. The thinking of spatial E-R model designed on the basis of semantics of geographic ontology is proposed by analyzing the relationship between geographic ontology and spatial E-R model. In the end from an example of about irrigation to introduce a method of establishing conceptual model of spatial database by designing spatial E-R model according to geographic ontology.