Abstract
The objective of the work described in this paper is to move closer to the ultimate goal of seamless system integration using the principle behind ontological engineering to unambiguously define domain-specific concepts. Current integration efforts are usually based solely on how information is represented (the syntax or terminology) without a description of what the information means (the semantics). This paper documents the results of the first phase of this project, that of analyzing existing ontological systems to determine which is most appropriate for the manufacturing and healthcare domains. In particular, this phase involved the exploration of efforts that are studying both the uses of ontologies in the general sense and those that are using ontologies for domain specific purposes.