This paper proposes a new model to support user queries on postgraduate research information at Universiti Tenaga Nasional. The ontology to be developed will contribute towards shareable and reusable domain knowledge that makes knowledge assets intelligently accessible to both people and software. This work adapts a methodology for ontology development based on the framework proposed by Uschold...

We present a prototype ontology-based knowledge system built with the Protégé-2000 knowledge acquisition tool. Preliminary ideas about the role of ontologies in information systems [1] and its goal of reusing knowledge in information system development [2] are refined. A domain ontology in Protégé and inference rules in Jess are combined into a knowledge system in which the elicitation and the ...

The development of ontologies that define entities and relationships among them has become essential for modern work in biomedicine. Ontologies are becoming so large in their coverage that no single centralized group of people can develop them effectively and ontology development becomes a community-based enterprise. In this paper we present Collaborative Protégé-a prototype tool that supports ...

Comprehension of justifications is known to be difficult for even experienced ontology engineers, and much more so for other stakeholders. In this paper, we present two methods for displaying justifications using concept diagrams: using multiple concept diagrams to represent the justification (one diagram for each axiom); and using a merged concept diagram to represent all axioms in the justifi...

Ontology-based data access (OBDA) is a recent paradigm for accessing large data repositories through an ontology, that is a formal description of a domain of interest. In this work, we present the Mastro plug-in for the standard ontology editor Protégé, which allows users to create a full OBDA specification and pose SPARQL queries over the ontology language to extract data from the underlying d...

Ontology schemas tend to change and evolve over time to meet new requirements. This change may invalidate dependent applications if there is no dynamic adaptation to the changes made to underlying ontologies. Protégé, as a popular ontology development tool, should meet the challenges addressed by the evolving ontology. In this paper, we will briefly analyse the current ontology-change managemen...

The Foundational Model of Anatomy (FMA) [5] is a hierarchical description of the human anatomy implemented in the Protégé 2000 knowledge representation. It can be navigated using Protégé or the Foundational Model Explorer (FME) or queried using the query engine Emily [2], [3]. An approach called The Structural Difference Method [4] has been proposed to correlate the anatomy of two species. In t...

We present an original Protégé plugin developed for the deep consistency checking of OWL ontologies. The plugin constructs and visualizes a minimal satisfiability model of the ontology, which is likely to uncover potential ontological errors: if the constructed model contradicts the author’s intentions, then the ontology itself is either wrong or incomplete. A satisfiability model is generated ...