Dear Sean, (01)
I made a posting that may be relevant. It may be lost in the system
as its last version had the title "Second Posting". It is my response
to Matthew West's comments on an earlier posting. (02)
With Peter Yim's help I hope to amend that to the more informative:
"Actualism as basis for ontologies with empirical canonical form" (03)
The ideas word very well in practice. (04)
Hope you can trace it. I'd be interested in your reactions. (05)
On 3/6/08, Barker, Sean (UK) <Sean.Barker@xxxxxxxxxxxxxx> wrote:
>
> This mail is publicly posted to a distribution list as part of a process
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> contrary non-withstanding. It is the opinion of the author, and does not
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>
> I'm not sure this discussion has illuminated the concept of
> orthogonality, as compared to, say, ontology intersection. On the
> analogy of linear algebra, I would expect orthogonality to be defined
> through a lack of coupling between sub-ontologies. For example, I might
> classify <b>product</b> by functional type (specification, part,
> document) and by life cycle phase (design, planned-occurrence,
> actual-occurrence). I would consider these orthogonal in the sense that
> the criteria for classifying by functional type do not intersect with
> the criteria for classifying by life cycle phase.
>
> That is, I would not classify ontologies as orthogonal unless they
> describe the same thing in different ways such that knowing the ontology
> class of the thing in one ontology does not help identify the class used
> in the other.
>
> The implication of this is that ontology orthogonality is about the
> decision criteria for choosing classes, not about the actual classes.
> This is not something that is expressed in ontology languages such as
> OWL - are there any ontology definition languages which do record the
> decision criteria?
>
>
> Sean Barker
> BAE SYSTEMS - Advanced Technology Centre
> Bristol, UK
> +44(0) 117 302 8184
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> (06)
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