Ontologies=Architecture Flows and Hierarchies = Implementation.  It is not one or the other – it is both for Enterprise Architecture or Business Architecture. If your Enterprise or Business Architecture efforts are not getting the results or recognition you believe should be there, it is highly likely that what are presenting is not architecture and is not human consumable.  It is never too late to get on the Architecture track to add to the Implementation architectures you have in your portfolio.  Listen in for some hints!