> IMHO, inadequate separation of ontology's domain will have some > serious side effects in the long run. Aside from wasted bandwidth > and computation to handle the unnecessary statement, but when more > ontologies are shared, the chance for incur conflict will increase > and makes the sharing ontology impossible.
In my opinion, we should stop to care too much about single, delimited ontologies. When I want to reuse some parts of FOAF while leaving out the ridiculous parts ('geekcodes', 'dna-checksums' and other jokes), I would simply extract the classes and properties that I need and add them to my ontology / software. As I see it, all of these statements should be seen as a global graph of RDF nodes and arcs. How these are represented locally inside .rdf /.owl files or through SPARQL endpoints is secondary. kind regards, Matthias Samwald