GAS Ontology: An ontology for collaboration among ubiquitous computing devices

In this paper, we present the GAS Ontology as well as the design challenges that we faced and the way that we handled them. In order to select the language and the tool that we used for the development of the GAS Ontology, we designed a prototype ontology and evaluated a number of languages and tools. The ontology development tool that proved to be the most suitable from this evaluation was Protégé-2000. We also present how we use the GAS Ontology in our eGadgets project achieving semantic interoperability and service discovery. Finally, we present the GAS Ontology manager, which runs on each device, manages the device's ontology and processes the knowledge that each device acquires over time.