Layered event ontology model

Event plays an important role in the field of semantic understanding that associates entities. Although traditional ontology is an effective model to represent domain concept hierarchies and semantics, it simply considers event same as static concept or describes it as relationship. This paper proposes a layered event ontology model which emphasis on event and layered the traditional ontology by excluding events from concepts have the static characterization, describing them at different levels respectively, meanwhile tie them by element relationship. It finally suggests the method to construct layered event ontology from existent ontology which is under the traditional model, and provides an example to explain it.