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Protégé, developed by Stanford University, is a free, open-source ontology editor and framework aimed at building intelligent systems. It is used by a wide range of users, including academic, government, and corporate users, in professions such as biomedicine, e-commerce, and organizational modeling.

Key Features

Ontology Editor: According to the vendor, Protégé provides a user-friendly interface for creating, modifying, and managing ontologies. Users can define classes, properties, individuals, and relationships within the ontology.

Plug-in Architecture: The vendor states that Protégé offers a flexible plug-in architecture that allows users to customize the tool by adding or creating plug-ins to meet their specific requirements. This enables integration with other tools and problem solvers.

Support for OWL 2 and RDF: Protégé fully supports the latest OWL 2 Web Ontology Language and RDF specifications, ensuring compatibility and interoperability with other systems. Users can create ontologies using these standards.

Extensibility and Rapid Prototyping: Built on Java, Protégé provides an extensible environment for ontology development. According to the vendor, users can rapidly prototype and develop intelligent systems by leveraging its flexible and customizable framework.

Collaboration and Sharing: Protégé supports collaboration and sharing of ontologies among users. It allows for sharing via a server, enabling teamwork within teams or across organizations. Access control and versioning features ensure proper coordination and control over ontology development.

Community Support: According to the vendor, Protégé has an active community of users and developers who provide support, documentation, and contribute plug-ins. Users can seek assistance, ask questions, and share experiences through mailing lists and community forums.

Flexible Application Development: Protégé serves as a flexible base for developing ontology-based applications. Developers can integrate the output of Protégé with rule systems or other problem solvers to build a wide range of knowledge-based solutions.