Abstract: A matching system stores an element of schema that is identifiable with a child node of a parent node of a tree. An entity group of ontology includes a subclass of a class of further entity group matching to a parent element identifiable with the parent node is stored. An access unit accesses the element of the schema and the entity group of the ontology. A match unit matches the elements of the schema to the entity groups of the ontology when the elements correspond to the entity groups according to a correspondence test.

Abstract: Embodiments of the invention include a system for matching elements of a schema to entity groups of an ontology. The system includes a first storage means configured to store an element of the schema that is identifiable with a child node of a parent node of a tree and a second storage means configured to store an entity group of the ontology. The entity group includes a subclass of a class of a further entity group or a property of the class, the further entity group matching to a parent element identifiable with the parent node. The system further includes an access unit configured to access the element of the schema and the entity group of the ontology and a match unit. The match unit is configured to match the element of the schema to the entity group of the ontology.