The Ontology for Agents, Systems and Integration of Services: recent advancements of OASIS

Semantic representation is, especially through the use of Semantic Web technologies, a key enabler for many application domains, notably thanks to the representation of agents. A semantic description of agents can be practically achieved by taking a behaviouristic approach, whose essential aim is to define the operational capabilities of every agent. These are leveraged to enable agents to operate and engage with their peers. The OASIS ontology — An Ontology for Agent, Systems, and Integration of Services, presented in 2019 — pursues the behaviouristic approach to deliver a higher-level, semantic representation system as well as a communication protocol for agents and their commitments. Following the profitable adoption of OASIS as a foundational ontology for agents in the context of blockchain- oriented e-commerce, the ontology has been maintained and substantially updated over the years. This paper reports on the modelling choices and general advancements since the first publication of OASIS, especially after its profitable adoption by an European project.