OWL 1.1 Web Ontology Language
Background
The W3C Web Ontology Language (OWL) is playing an important role in an increasing number and range of applications, and is the focus of research into tools, reasoning techniques, formal foundations and language extensions. This level of experience with OWL means that the community is now in a good position to discuss how OWL be applied, adapted and extended to fulfil current and future application demands. In particular, the initial design of OWL was conservative in several ways: it excluded constructs that did not have considerable

