Adam, comments interspersed, Jon. Anyway, I did not know exactly what to call the other components, but I had the sense that the ontology was functioning somewhat in the manner of an abstract, schematic, or skeletal data structure.
Content is hard and it's too easy to get distracted.
But maybe you find no content-ment in these sorts of model objects. As it happens, these sorts of formal or mathematical objets d'art also have their instrumental edges, and are precisely my tools of choice for digging the content that can be found in other sorts of stuff, without which tools of new improved varieties we are stuck with echoing the commonsense intuitions of Aristotle and Ptolemy, if we even get that far. My interest is a pragmatic one. The easiest examples are the APIs we have discussed. I see no movement there.