On 12/7/11 12:53 PM, David C. Hay wrote:
Unfortunately, the only medium for these models at
the
moment is the published book. I have visions of one day
converting
the models to OWL and publishing them on the web. But not yet,
alas. I have written numerous articles on modeling subjects,
that you can
read at
http://articles.essentialstrategies.com. That requires
you to
register, but there is not charge. I did publish an article on
data
modeling and OWL for the Cutter Newsletter, that you can read at
http://essentialstrategies.com/publications/semantics/semantics.htm
.
Do you data models in any machine readable form? What about links to
resources bearing the OWL based ontology in the doc you reference
above?
Kingsley
Dave
At 11:25 AM 12/7/2011, you wrote:
David:
Can you provide a pointer a detailed online version
(description,
example, and/or implementation) that would be the subject of
the
comments?
Take care,
Joe
On Wed, Dec 7, 2011 at 9:05 AM, David C. Hay
<
dch@xxxxxxxxxxxxxxxxxxxxxxx> wrote:
- At the risk of committing serious hubris, I have created
my own
version of a "universal" ontology. It is in the form of a
set
of data model patterns. My first cut at this was some 16
years ago
with my first book, Data Model Patterns:Conventions of
Thought.
That was before I knew about ontologies. I was just trying
to
create some useful standard data models for standard
business
situations.
- This year I published the successor to that book,
Enterprise Model
Patterns: Describing the World. It is more comprehensive,
and I dealt
with the issue of "how abstract should the model be?" by
presenting the world according to David Hay at four levels
of
abstraction:
- Level 1 is a generic model of an enterprise, in terms of
people and
organizations, geographic locations, physical resources,
activities and
events, and time.
- Level 0 is a template for these, plus "meta" models of
accounting and document management. (Each of these topics
itself is
connected to the entire rest of the world.)
- Level 2 consists of composites of the Level 1 elements to
describe
specific functional areas: human resources, contracts, etc.
- The assumption is that most modeling requirements for most
companies
can be handled by the Level 0-2 models. But in each
industry, there
is some part that requires special attention. So, for Level
3, I
selected five that I happen to know something about:
Criminal Justice,
Microbiology, Financial Institutions, Highway Design, and
Oil Well
Design.
- Since this is a structured representation of a domain, in
terms of
defined classes and their relationships to each other, with
the ability
to draw inferences, it seems to me like an ontology.
- I welcome anyone's response.
- Dave Hay
- At 11:14 PM 12/6/2011, you wrote:
- On 12/6/2011 1:32 PM, AzamatAbdoullaev wrote:
- > The schema.org's team has
chosen
popular promises, shirking all sorts of
- > "intellectualese" as ontology, formal logic, etc:
"be simple, and the web
- > masses will follow you."
- The vocabulary for schema.org is more
like WordNet. It a taxonomy
- of useful terms, but it should not be considered an
ontology.
- It is also similar to other things such as
GoodRelations, which
- also has a vocabulary of useful terms. Both of them
are at
about
- the same level. The fact that one uses OWL and the
other
doesn't
- is irrelevant.
- > Many issues (with smart web applications and
semantic web
technologies) are
- > coming from the lack of commitment to a common
ontology, as a
universal,
- > referenceable system of meanings, a guarantee of
consistency,
completeness
- > and understanding, serving as a solid foundation
for
- > data/information/knowledge indexing, metatagging,
retrieval,
and
- > communicating.
- It is impossible to have a consistent, universal
ontology of
every
- possible way of thinking by everybody on the planet.
- It might be possible to have a single universal
consistent
ontology
- of the way God sees the universe. But his revelations
-- at
least
- the ones that have been handed down to us -- tend to
be rather
- enigmatic and incomplete.
- So we just have to muddle through with the best we can
get from
- science. And the task of science is very incomplete.
- John
-
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