Protégé is a free, open source
ontology
Ontology is the philosophical study of existence, being. It is traditionally understood as the subdiscipline of metaphysics focused on the most general features of reality. As one of the most fundamental concepts, being encompasses all of realit ...
editor and a
knowledge management
Knowledge management (KM) is the set of procedures for producing, disseminating, utilizing, and overseeing an organization's knowledge and data. It alludes to a multidisciplinary strategy that maximizes knowledge utilization to accomplish organ ...
system. The Protégé meta-tool was first built by
Mark Musen in 1987 and has since been developed by a team at
Stanford University
Leland Stanford Junior University, commonly referred to as Stanford University, is a Private university, private research university in Stanford, California, United States. It was founded in 1885 by railroad magnate Leland Stanford (the eighth ...
. The software is the most popular and widely used ontology editor in the world.
Overview
Protégé provides a graphical user interface to define ontologies. It also includes
deductive classifier A deductive classifier is a type of artificial intelligence inference engine. It takes as input a set of declarations in a frame language about a domain such as medical research or molecular biology. For example, the names of Class hierarchy, classe ...
s to validate that models are consistent and to infer new information based on the analysis of an ontology. Like
Eclipse
An eclipse is an astronomical event which occurs when an astronomical object or spacecraft is temporarily obscured, by passing into the shadow of another body or by having another body pass between it and the viewer. This alignment of three ...
, Protégé is a framework for which various other projects suggest plugins. This application is written in
Java
Java is one of the Greater Sunda Islands in Indonesia. It is bordered by the Indian Ocean to the south and the Java Sea (a part of Pacific Ocean) to the north. With a population of 156.9 million people (including Madura) in mid 2024, proje ...
and makes heavy use of
Swing to create the user interface. According to their website, there are over 300,000 registered users. A 2009 book calls it "the leading ontological engineering tool".
Protégé is developed at Stanford University and is made available under the
BSD 2-clause license.
Earlier versions of the tool were developed in collaboration with the
University of Manchester
The University of Manchester is a public university, public research university in Manchester, England. The main campus is south of Manchester city centre, Manchester City Centre on Wilmslow Road, Oxford Road. The University of Manchester is c ...
.
See also
*
OWL and
RDF
*
Semantic technology
The ultimate goal of semantic technology is to help machines understand data. To enable the encoding of semantics with the data, well-known technologies are RDF (Resource Description Framework) and OWL (Web Ontology Language). These technologies ...
References
External links
*
Protégé wiki
Knowledge representation
Free integrated development environments
Ontology (information science)
Ontology editors
Free software programmed in Java (programming language)
Software using the BSD license
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