Dear Colleagues, (01)
Well with all this talk of "Chris's Book" let's at least give a proper
reference. (02)
Partridge, C. Business objects: re-engineering for re-use,
Butterworth-Heinemann, (second edition) 2005, The Boro Centre (03)
I recommend it too. (04)
Of course all this talk of extensionalism means that you are 4D. But that is
the price of simplicity. (05)
Regards (06)
Matthew West
http://www.matthew-west.org.uk/ (07)
> -----Original Message-----
> From: ontolog-forum-bounces@xxxxxxxxxxxxxxxx [mailto:ontolog-forum-
> bounces@xxxxxxxxxxxxxxxx] On Behalf Of John F. Sowa
> Sent: 20 January 2009 14:51
> To: ian@xxxxxxxxxxxxxxxx; [ontolog-forum]
> Subject: Re: [ontolog-forum] Next steps in using ontologies as
> standards
>
> Ian,
>
> Please do not confuse me with Pat Cassidy.
>
> > The initial approach we took is very similar to the one suggested
> > by John below...and it was a miserable failure.
>
> In that note, I was not suggesting any approach. What I was trying
> to do is to convince Pat that the approach he was proposing was a
> dead end.
>
> > If you try to work concept-by-concept, it's doomed to failure.
> > You can never be sure that you have full consensus between everyone
> > in the room, because you can't be sure that one person's
> understanding
> > of a concept is precisely the same as another's (no matter how long
> > you debate it).
>
> I agree with that.
>
> > We chose Chris Partridge's BORO method, as a few of us had read his
> > book and wanted to give it a try. It has the advantage of ignoring
> > ideas such as "concepts" and "terms". It's ruthlessly extensional -
> > individuals are identified by their physical extent, classes by
> > their members, and relationships by their ends. Once you've figured
> > out something's extent, you can then apply whatever names you want
> > to it. The process can be achingly slow, but at least it gets
> results,
> > and the results can't be refuted.
>
> I think very highly of Chris Partridge and his book, and I believe
> that his technique is light-years ahead of any approach that starts
> with concepts -- or even worse with RDF and OWL. One of the best
> features of his book is that he emphasizes *logic*.
>
> > Another tip is to sort out your ontic categories early on. I'm
> > not sure OWL and RDFS give you a proper foundation for ontology
> > development - there are some very strange things in the W3C spec
> > about how an individual in one ontology can be a class in another
> > (bizarre even in an intensional approach).
>
> I very strongly agree. RDFS and OWL are horrible examples of how
> *not* to design an ontology language. The designers started with
> two disastrous implementation-based assumptions:
>
> 1. They wanted to reuse their XML-based parsing tools by forcing
> everything into the world's worst syntax.
>
> 2. They forced a weird semantics in which the only relations
> are dyadic. That means that you can't even say 2+2=4
> because the "+" operator is triadic: it takes two inputs
> and generates one output.
>
> These two blunders are the source of those bizarre features you
> mention above. You can't entirely ignore RDF and OWL because
> they were foisted on a large set of people who didn't know enough
> to see that they were dupes in a Ponzi scheme. But you should
> always preserve your sanity by thinking in terms of something
> better, and Chris P's book is a good place to start.
>
> John Sowa
>
>
>
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