> I have been working on a Boeing research project (with Mike Uschold and > other researchers at Boeing) addressing Information Integration using > semantic web technologies. Our work was presented at a workshop at WWW > 2002, which you can read at: > http://www.cs.rutgers.edu/~shklar/www11/final_submissions/paper3.pdf > > We have implemented components that support semantic information > integration. By-and-large the representation features of OWL Lite support > what we are doing, and we would expect to transition our tools to OWL Lite > when it becomes a W3C recommendation. However, there is one > representational feature that is not part of OWL Lite, and I'd like to > suggest it be moved from OWL to OWL Lite: hasValue My understanding of > hasValue is that it allows the ontology to set the value that a property > must (always) have. > > In our case hasValue would primarily be used for inherited properties that > always have the same value for subclass members. (This is not the same as > default values which imply a source and truth level used in logic.) We > have found this construct necessary when integrating data from > heterogeneous databases, where the database tables do not contain a > property value because they were considered to be fixed (always the same). > For example we have database tables containing information about airplanes > of a certain model. These tables do not contain the model identifier. In > this case we would like to be able to express the (constant) model > identifier using the hasValue construct. > > Please feel free to contact me for further discussion. > > Regards, > > David H. Jones > Boeing Phantom Works, > Mathematics & Computing Technology > 425-865-6924 > 425-856-2964 (FAX) > david.h.jones@boeing.com > >Received on Thursday, 8 August 2002 11:13:15 GMT
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