Question - History of ivoa onto of astronomical object types

[Robert Rovetto]

(resending due to sending error) Thanks for the replies so far. I'm happy to understand more

I'm curious about a couple of things that don't seem reflected in the webpage for the ontology technical note...
Does anyone know:- why it did not reach an application stage?- why the study or further work did not continue? - Did the ivoa ontology exploration proved to be insufficient, partly so, or otherwise (and why)?
- What caused the current effort (the current IVOA vocabularies), rather than continuing with the ontology or a set of ontologies?
I think it's valuable that there is a diversity of types of knowledge organization systems, from controlled vocabularies to ontologies to other systems, since each has pros and cons. Some can be used as their counterparts as well.
So I'm curious about any experiences developing that ontology, any challenges, and any overall findings.  

    On Friday, December 3, 2021, 04:26:38 AM EST, Markus Demleitner <msdemlei at ari.uni-heidelberg.de> wrote:  
 
 Robert,

On Fri, Dec 03, 2021 at 07:45:29AM +0000, Robert Rovetto wrote:
> Can anyone on the list who were original developers of that
> ontology share the history of it?

I suppose you're referring to
https://ivoa.net/documents/Notes/AstrObjectOntology/. First, for
orientation: This was a technology study that did not actually make
it to any productive application (as far as I am aware).  Our current
effort, http://www.ivoa.net/rdf/object-type/, is only loosely
connected to that.  If I were to draw a provenance tree of the whole
thing, this vocabulary would be quite a bit down a different branch.

Having said that, almost all of the original authors are now retired
or are working outside of science and are hence no longer reading
this list.  If you'd like to collect some history on that particular
effort, you might hence be better off trying to locate some of the
authors using other channels and ask them directly.

          -- Markus
  
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