What is ontology in information systems?

What is ontology in information systems?

Ontology, in its original meaning, is a branch of philosophy (specifically, metaphysics) concerned with the nature of existence. In summary, in informa- tion systems, ontologies are used mainly for knowledge representation, knowledge sharing, information retrieval, and knowledge management.

What is an ontology model?

An ontology is a formal description of knowledge as a set of concepts within a domain and the relationships that hold between them. There are, of course, other methods that use formal specifications for knowledge representation such as vocabularies, taxonomies, thesauri, topic maps and logical models.

What is an RDF ontology?

RDF Schema (RDFS) is a language for writing ontologies. An ontology is a model of (a relevant part of) the world, listing the types of object, the relationships that connect them, and constraints on the ways that objects and relationships can be combined.

What is ontology in knowledge representation?

Ontology based knowledge representation describes the individual instances and roles in the domain that are represented using unary and binary predicates [7]. It enables knowledge sharing, processing, reuse, capturing and communication.

What is the difference between a taxonomy and an ontology?

According to Bob Bater, “an ontology identifies and distinguishes concepts and their relationships; it describes content and relationships. A taxonomy formalizes the hierarchical relationships among concepts and specifies the term to be used to refer to each; it prescribes structure and terminology.”

What comes first ontology or epistemology?

The first branch is ontology, or the ‘study of being’, which is concerned with what actually exists in the world about which humans can acquire knowledge. The second branch is epistemology, the ‘study of knowledge’.

Is ontology qualitative or quantitative?

TABLE 1 Qualitative and Quantitative Approaches Compared