Giancarlo Guizzardi Ricardo de Almeida Falbo Renata S. S. Guizzardi Grounding Software Domain Ontologies in the Unified Foundational Ontology (UFO): The case of the ODE Software Process Ontology. 127-140 2008 CIbSE conf/cibse/2008 db/conf/cibse/cibse2008.html#GuizzardiFG08