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    <div class="moz-cite-prefix">Hi Robert,</div>
    <div class="moz-cite-prefix"><br>
    </div>
    <div class="moz-cite-prefix">The development of the object type
      ontology was supported by a project funded by the European
      Commission. The project was called EuroVO-AIDA (Astronomical
      Infrastructure for Data Access - 2008-2010) and the development
      was made in the framework of the project WP8 Assessment of
      emerging technologies by INAF and CDS. The aim was to investigate
      the usage of ontologies for our needs, and we choosed to focus on
      a well defined subject, astronomical object types. The use cases
      had been gathered in the framework of a previous EC funded project
      called VO-TECH. <br>
    </div>
    <div class="moz-cite-prefix"><br>
    </div>
    <div class="moz-cite-prefix">The starting point was the list of
      object types from the SIMBAD database, which has continued to
      evolve since then, its current version is here:
      <a class="moz-txt-link-freetext" href="http://simbad.u-strasbg.fr/simbad/sim-display?data=otypes">http://simbad.u-strasbg.fr/simbad/sim-display?data=otypes</a>. SIMBAD
      is the reference database for astronomical objects outside of the
      Solar System maintained by the Strasbourg astronomical data centre
      CDS: <a class="moz-txt-link-freetext" href="http://simbad.u-strasbg.fr/simbad/">http://simbad.u-strasbg.fr/simbad/</a></div>
    <div class="moz-cite-prefix"><br>
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    <div class="moz-cite-prefix">Hope this helps</div>
    <div class="moz-cite-prefix">Francoise<br>
    </div>
    <div class="moz-cite-prefix"><br>
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    <div class="moz-cite-prefix"> <br>
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    <div class="moz-cite-prefix">Le 03/12/2021 à 08:45, Robert Rovetto a
      écrit :<br>
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      cite="mid:1629444202.3884531.1638517529351@mail.yahoo.com">
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                    <div>Can anyone on the list who were original
                      developers of that ontology share the history of
                      it?<br>
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            <div> On Monday, November 29, 2021, 12:09:56 PM EST, Robert
              Rovetto <a class="moz-txt-link-rfc2396E" href="mailto:ontologos@yahoo.com">&lt;ontologos@yahoo.com&gt;</a> wrote: </div>
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                      <div dir="ltr">Thanks for that context. <span>I
                          will try. </span>In the meantime, one
                        specific question is: Would people involved in
                        the creation &amp; development of the <span><span>IVOA
                            ontology of astronomical object types </span></span>tell
                        its particular history? <br clear="none">
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                        <div> On Monday, November 29, 2021, 05:24:57 AM
                          EST, Markus Demleitner
                          <a class="moz-txt-link-rfc2396E" href="mailto:msdemlei@ari.uni-heidelberg.de">&lt;msdemlei@ari.uni-heidelberg.de&gt;</a> wrote:
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                        <div>Hi Robert,<br clear="none">
                          <br clear="none">
                          On Fri, Nov 26, 2021 at 05:16:54PM +0000,
                          Robert Rovetto wrote:<br clear="none">
                          &gt; Although some tech documentation pages
                          and list archive are on the<br clear="none">
                          &gt; site, I'm interested in understanding
                          more about the history of the<br clear="none">
                          &gt; IVOA ontology.  <br clear="none">
                          <br clear="none">
                          Well, there is no IVOA ontology, just several
                          vocabularies.  The ones<br clear="none">
                          we currently define are on <a rel="nofollow
                            noopener noreferrer" shape="rect"
                            target="_blank"
                            href="http://www.ivoa.net/rdf/. "
                            moz-do-not-send="true">http://www.ivoa.net/rdf/.
                          </a> Some of these,<br clear="none">
                          indeed, have a rather twisted provenance;
                          refframe, for instance,<br clear="none">
                          takes up bits that once lived in two different
                          XML schemas, which in<br clear="none">
                          turn drew on quite a bit of prior art.  The
                          history of an astronomy<br clear="none">
                          thesaurus (the latest incarnation of which,
                          the UAT, is still in the<br clear="none">
                          process of adoption by the IVOA) could fill
                          volumes.  And then there<br clear="none">
                          are the UCDs, which have a rich history of
                          their own.
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                            &gt; Would anyone--e.g., original ivoa
                            developers--be able to share? <br
                              clear="none">
                            &gt; If willing, a presentation in a meeting
                            would be wonderful.</div>
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                          <br clear="none">
                          Most of what you see today went through many
                          hands, and hence it is<br clear="none">
                          not easy to even name the "original ivoa
                          developers" in many cases,<br clear="none">
                          and quite a few of the original protagonists
                          have already retired.  <br clear="none">
                          <br clear="none">
                          And so there is not just one history, but
                          quite a number of stories.<br clear="none">
                          It might be methodically enlightening to try
                          and tell one or two of<br clear="none">
                          those, but to pick which one to tell, it would
                          help to have a few<br clear="none">
                          questions that such stories could be intended
                          to answer.<br clear="none">
                          <br clear="none">
                          Could you try and come up with some of these
                          questions?<br clear="none">
                          <br clear="none">
                                  -- Markus
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