RDF Schema (was: [Biocorba-l] Annotations)

[Juha Muilu]

Thomas Down wrote:
> 
> On Tue, Jun 05, 2001 at 10:35:08AM +0100, Martin Senger wrote:
> > >
> > > > last couple of weeks, I've been looking at RDF Schema and DAML as mechanisms
> > > > which could be used to define annotation schemas.  This ought to retrofit
> > > > quite cleanly on top of the current Annotatable/Annotation API.
> > >

Thanks Thomas for the taking this up! Any ideas how this retrofitting
can be done?

By quickly looking, the annotation mechanism in the RDF schema seems to
be much richer what we have.  It contains more information about the
annotation itself (creator, date, link to related info, type of
annotation, content of annotation, reference between annotation and
annotatable and context )

We have basically already have content (value), type (name), context
(SeqLocation),
reference to annotatable (get_AnonymousSequence(), eh should we now
replace it to get_Annotatable()!)
 

How about the other info? 

How does all this relate to the DAS ?

Any comments!!



> > > Martin could you comment this. How the constrained vocabulary
> > > server/Candy etc. fit on this?
> > >
> >    I do not know what is meant by "annotation schemas" - so I do not know
> > if "Candy" can help. The "Candy" is a Java (and optionally CORBA)
> > implementation of an official OMG module (submitted by EBI and NetGenics
> > as a part, but very separate part, of Genomic maps spec) for controlled
> > vocabularies. It was meant to be simple - if you need more there is an OMG
> > Lexicon service. The Candy is avalable at http://industry.ebi.ac.uk/candy.
> 
> A schema mechanism is one step beyond controlled vocabularies.
> As a simple example of how I look at this sort of thing:
> 
>   CV:     ``Annotation bundles may contain a property called
>             "percentage-identity" (and optionally define some
>             semantics for this).''
> 
>   Schema: ``Features of type "repeat" have a property of type
>             "double" named "percentage-identity".''
> 
> On the other hand, using controlled vocabularies is half the
> battle.  I'll take a look at Candy.
> 
> Thanks,
> 
>    Thomas.
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