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<div class="moz-cite-prefix">My understanding is that the
vocabularies fulfilled our needs, and that our tests of ontologies
(CDS had done another one with a wider ontology perimeter before
that one) showed that they are more costly to develop and maintain
than vocabularies. The object type ontology was nice, allowing to
display the relationship between the concepts, etc but the point
was not to have a nice display. <br>
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<div class="moz-cite-prefix">Best</div>
<div class="moz-cite-prefix">Francoise<br>
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<div class="moz-cite-prefix">Le 04/12/2021 à 08:21, Robert Rovetto a
écrit :<br>
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<blockquote type="cite"
cite="mid:131319579.828473.1638602508951@mail.yahoo.com">
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<div dir="ltr" data-setdir="false">(resending due to sending
error) Thanks for the replies so far. I'm happy to
understand more<br clear="none">
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<div dir="ltr">I'm curious about a couple of things that
don't seem reflected in the webpage for the ontology
technical note...<br clear="none">
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<div dir="ltr">Does anyone know:</div>
<div dir="ltr">- why it did not reach an application
stage?</div>
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<div dir="ltr">- why the study or further work did not
continue? </div>
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<div dir="ltr"><span><span>- Did the ivoa ontology
exploration proved to be insufficient, partly so,
or otherwise</span></span> (and why)?<br
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<div dir="ltr">- What caused the current effort (the
current IVOA vocabularies), rather than continuing
with the ontology or a set of ontologies?</div>
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<div dir="ltr"><span><span>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.<br clear="none">
</span></span></div>
<span></span><span>So I'm curious about any experiences
developing that ontology, any challenges, and any overall
findings. </span></div>
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<div> On Friday, December 3, 2021, 04:26:38 AM EST, Markus
Demleitner <a class="moz-txt-link-rfc2396E" href="mailto:msdemlei@ari.uni-heidelberg.de"><msdemlei@ari.uni-heidelberg.de></a> wrote: </div>
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<div>Robert,<br clear="none">
<br clear="none">
On Fri, Dec 03, 2021 at 07:45:29AM +0000, Robert Rovetto
wrote:<br clear="none">
> Can anyone on the list who were original developers of
that<br clear="none">
> ontology share the history of it?<br clear="none">
<br clear="none">
I suppose you're referring to<br clear="none">
<a shape="rect"
href="https://ivoa.net/documents/Notes/AstrObjectOntology/.
" target="_blank" moz-do-not-send="true">https://ivoa.net/documents/Notes/AstrObjectOntology/.
</a>First, for<br clear="none">
orientation: This was a technology study that did not
actually make<br clear="none">
it to any productive application (as far as I am aware).
Our current<br clear="none">
effort, <a shape="rect"
href="http://www.ivoa.net/rdf/object-type/, "
target="_blank" moz-do-not-send="true">http://www.ivoa.net/rdf/object-type/,
</a>is only loosely<br clear="none">
connected to that. If I were to draw a provenance tree of
the whole<br clear="none">
thing, this vocabulary would be quite a bit down a different
branch.<br clear="none">
<br clear="none">
Having said that, almost all of the original authors are now
retired<br clear="none">
or are working outside of science and are hence no longer
reading<br clear="none">
this list. If you'd like to collect some history on that
particular<br clear="none">
effort, you might hence be better off trying to locate some
of the<br clear="none">
authors using other channels and ask them directly.
<div class="yqt8636345112" id="yqtfd89290"><br clear="none">
<br clear="none">
-- Markus<br clear="none">
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