Our Ontologies

An OWL formalization of Barwise & Perry's Situation Theory, providing the formal primitives — situations, objects, relations, attributes, and roles — that underpin higher-level information fusion and situation-aware reasoning. STO enables systems to represent and reason about situations as first-class semantic entities, rather than simply collecting facts.

A domain-independent core ontology providing the reusable foundation for situation awareness applications. Introduced at FUSION'03 and extended across more than a decade of VIStology research, SAW Core is the backbone of the SAWA (Situation Awareness Assistant) system and has shaped how the information-fusion community formalizes situation awareness.

An OWL ontology automatically generated from NATO's Joint Consultation, Command and Control Information Exchange Data Model (JC3IEDM). By bringing this coalition C2 standard into the semantic web stack, the ontology enables formal reasoning, consistency checking, and interoperability across allied command and control systems.

Ontologies capturing the Metadata Description Language (MDL) and Telemetry Attribute Transfer Standard (TMATS) used throughout flight test and telemetering. They enable semantic validation of T&E data, cross-vendor interoperability in iNET-based systems, and have served as the formal substrate for TACL — a proposed standard T&E constraint language.

An OWL ontology capturing the concepts, parameters, and behaviors of cognitive radios — the shared vocabulary that allows heterogeneous radios, policy engines, and reasoning components to describe capabilities and negotiate configurations. CRO was developed under the auspices of the Wireless Innovation Forum (formerly the SDR Forum) as a community standard, with VIStology serving as the driving force behind its design, formalization, and evolution from the original CRO into CRO2. It remains a central reference point for ontology-based approaches to cognitive radio and has been applied across a range of policy-driven adaptation and spectrum-sharing systems.

An ontology for describing cognitive radio functions and RF-based microservices. DeVISor enables standardized semantic discovery and invocation of RF capabilities across heterogeneous platforms, supporting dynamic composition of radio services based on declared capabilities rather than hard-coded interfaces.

The ontological foundation for a proposed standard for exchanging Electromagnetic Spectrum (EMS) knowledge and interpreting spectrum access policies. SpectralSPARQL enables collaborative, dynamic spectrum sharing by making spectrum-access rules and observations machine-interpretable and queryable through semantic reasoning.