OWL: Web Ontology Language

We provide an in-depth example of modular ontology engineering with ontology design patterns. The style and content of this chapter is adapted from previous work and tutorials on Modular Ontology Modeling. It offers expanded steps and updated tool information. The tutorial is largely self-contained, but assumes that the reader is familiar with the Web Ontology Language OWL; however, we do briefly review some foundational concepts. By the end of the tutorial, we expect the reader to have an understanding of the underlying motivation and methodology for producing a modular ontology.

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SWRLx

Information Retrieval and Management ◽

10.4018/978-1-5225-5191-1.ch016 ◽

2018 ◽

pp. 348-367

Author(s):

Souad Bouaicha ◽

Zizette Boufaida

Keyword(s):

Semantic Web ◽

Knowledge Base ◽

Object Oriented ◽

Web Ontology Language ◽

Rule Engine ◽

Ontology Language ◽

New Knowledge ◽

Semantic Web Rule Language

Although OWL (Web Ontology Language) and SWRL (Semantic Web Rule Language) add considerable expressiveness to the Semantic Web, they do have expressive limitations. For some reasoning problems, it is necessary to modify existing knowledge in an ontology. This kind of problem cannot be fully resolved by OWL and SWRL, as they only support monotonic inference. In this paper, the authors propose SWRLx (Extended Semantic Web Rule Language) as an extension to the SWRL rules. The set of rules obtained with SWRLx are posted to the Jess engine using rewrite meta-rules. The reason for this combination is that it allows the inference of new knowledge and storing it in the knowledge base. The authors propose a formalism for SWRLx along with its implementation through an adaptation of different object-oriented techniques. The Jess rule engine is used to transform these techniques to the Jess model. The authors include a demonstration that demonstrates the importance of this kind of reasoning. In order to verify their proposal, they use a case study inherent to interpretation of a preventive medical check-up.

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A Good Role Model for Ontologies

Enterprise Information Systems and Advancing Business Solutions ◽

10.4018/978-1-4666-1761-2.ch013 ◽

2012 ◽

pp. 225-235 ◽

Cited By ~ 1

Author(s):

Michael Pradel ◽

Jakob Henriksson ◽

Uwe Aßmann

Keyword(s):

Role Models ◽

Role Model ◽

Building Blocks ◽

Role Modeling ◽

Web Ontology Language ◽

Existing Building ◽

Ontology Language ◽

Ontology Languages ◽

The Web

Although ontologies are gaining more and more acceptance, they are often not engineered in a component-based manner due to, among various reasons, a lack of appropriate constructs in current ontology languages. This hampers reuse and makes creating new ontologies from existing building blocks difficult. We propose to apply the notion of roles and role modeling to ontologies and present an extension of the Web Ontology Language OWL for this purpose. Ontological role models allow for clearly separating different concerns of a domain and constitute an intuitive reuse unit.

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