Hello,
I see one problem that I had. I had to open with TopBraid
(Semantic XML Documents) instead of just opening with XML Editor. Ok,
so I did that. I'm watching the video on youtube.com that has the
same title, opening arbitrary xml documents. When I get to open
Associations, I see nothing. It is empty. I thought I had followed
that video and was going to create an ontology using an xml file. I
was going to import into that xml file FOAF, BIO and REL, 3 web
ontologies, one of which comes with TBC.
I opened a xml file that was translated from a GEDCOM (the
file format for Genealogy). So, where it uses PERSON in the XML file,
I'd change that Class to foaf:Person after importing foaf. So, if I
understand right, I'd then remove all the instance data and Save As>
name.owl. For some reason, I'm not seeing the xmap property which
would be needed to map PERSON to foaf:Person. I actually didn't get
rid of the instance data yet. So, the instance data is still mapped
to PERSON and other classes and not to foaf:Person. I guess when I
import the original xml file into the owl file then it will do the
mapping.
Further questions: (1) If you have a class in an xml file that you
imported and in a vocabulary that you use, it is a property, what can
you do? For example the GEDCOM xml has a class of NAME, which
corresponds to foaf:name which is a property.
(2) I have a class when the xml is imported called RELATIONSHIP, which
happens to be the name of an ontology and it is a class in the
ontology. I'm not sure if I should reuse existing ontologies like
these three and keep their structure or create my own ontology. I do
have data elsewhere that uses these ontologies. I'm just not sure how
to tell TBC that when it sees the class NAME make that into foaf:name
property and etc.
(3) should I worry or wonder why there is nothing showing up in the
Associations view?
Bruce
On Sep 1, 4:58 pm, Gokhan Soydan <[email protected]> wrote:
> Bruce,
>
> Answers below:
>
> > Ok, I was able to open the XML file and see Classes and properties.
> > However, when I opened Associations, it was empty.
>
> After opening Associations view, click on the blue button (Select
> Property...) in the toolbar of the view. Select "composite:child" from
> the dialog. Then, you will see the XML instances in a tree hierarchy.
>
> > I could use the vocabularies that already exist like BIO, REL and
> > FOAF. So, in the Genealogy XML file, I'd start by wanting the Class
> > Person to be
> > made an equivalent Class with foaf:Person or a subclass of
> > foaf:Person, not sure which. Then I'd have some Event classes that
> > would relate to the BIO vocabulary. So, I do have sxml:Node as a
> > Class and under that most of the data from the xml file is in the
> > sxml:TextNode. There are 968 Instances here. I wouldn't want to
> > connect this with any ontology because we have different types of data
> > in this class sxml:TextNode.
> > Maybe I want<PERSON> from the imported XML file to be of type
> > foaf:Person instead of a subproperty of foaf:Person.
>
> I was late in my reply as I was thinking for a good answer for this
> part. I would suggest for you to wait for TBC 3.6.0 Beta release, which
> will have a lot of improvements in mapping an XML file to an ontology
> via SXML. Regarding those improvements, you will be able to specify
> annotations on classes and properties, which will map your XML instances
> to OWL instances with the annotated classes as their type, and these
> instances will be related to each other with the annotated properties
> rather than composite:child relationships.
>
> For further mappings like owl:equivalentClass, you can already construct
> an ontology with that property and use SPIN rules (SPARQL rules) to map
> XML instances to OWL instances with the type that those rules assert.
>
> Gokhan
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