|To:||<edbark@xxxxxxxx>, "[ontolog-forum] " <ontolog-forum@xxxxxxxxxxxxxxxx>, "[ontolog-forum]" <ontolog-forum@xxxxxxxxxxxxxxxx>|
|From:||"Sjir Nijssen" <sjir.nijssen@xxxxxxxxxxxx>|
|Date:||Wed, 5 Jan 2011 16:10:06 +0100|
The email below of Ed Barkmeyer has some very interesting points.
I will add a few sentences here and there, in bold and between [[ ]].
Ed Barkmeyer wrote:
My take, based primarily on
discussions with manufacturing executives and a handful of consultants,
is that what the senior executives want right now is three things:
(a) a means of organizing the captured corporate knowledge, so that it
can be searched and retrieved by people who discover they need it. The
problem with the captured knowledge is that it is mostly in text form,
with some formal models and structures in various languages and tools.
[[Sjir: this is indeed the same I learn from executives;
not only they are faced with the challenge to organize
the captured knowledge, they also struggle with the meaning
of the captured knowledge, in the sense that little or no semantics
is associated with the models specified in various languages and tools.
It is also worth mentioning that this is explicitly recognized in
ECSS-E-TM- 10-23 (European Cooperation for Space Standardization, 2010).
The need and importance of a meaningful global model
(as the union of various models and views)
of the corporate knowledge is identified in this.]]
do better than the Conceptual Schema as defined in ISO TR9007.
A Conceptual Schema as defined in TR9007 is a set of fact types (n-ary)
and all the associated validation (integrity) rules;
optionally a number of derivation rules can be added,
for more than one purpose.
In the early nineties the concept of conceptual schema has been extended
to include fact type forms (for communication purposes) and
in the mid nineties concept definitions for purposes of better understanding ]]
and it is a direct application of some of the Semantic
[[Sjir: Or, in other words: not only the results of projects
are to be administered in a formal and understandable manner,
also the “lessons learned” should be administered, including the faulty lessons.
A structured means of describing and formalizing the decision
process followed is needed. ]]
[[Sjir: in a truly engineered Conceptual Schema, this can be
dealt with without any disappearance.]] This is an area in which ontologies
[[Sjir: I invite Ed to illustrate this claim,
taking the definition of Conceptual Schema as in ISO TR9007.
It may be useful to quote a few concept definitions of ISO TR9007.
100 Percent principle
All relevant general static and dynamic aspects, i.e. all rule,
laws, etc., of the universe of discourse should be described in
the conceptual schema. The information system cannot be held
responsible for not meeting those described elsewhere,
including in particular those in application programs.
A conceptual schema should only include conceptually relevant aspects,
both static and dynamic of the universe of discourse, thus excluding
all aspects of (external and internal) data representation,
physical data organization and access as well as all aspects of
particular external user representation such as message formats,
data structures, etc.
A consistent collection of sentences expressing the necessary propositions
that hold for a universe of discourse. ]]
Ontologies can provide formal definitions of classes
[[Sjir: the same can be done with SQL and
a Conceptual Schema a la ISO TR9007.]]
[[Sjir: I would like to add to this list the running systems. There is quite a bit
of knowledge buried in these systems. Bringing that knowledge in a
conceptual schema makes the knowledge more accessable and it can be used
in comparing the knowledge obtained from the subject matter experts.
And it also recommended to describe the knowledge that is encoded
in action sequences of business processes.]]
[[Sjir: I agree completely with Ed, the need here is for a comprehensive protocol
or methodology, to be used by an engineer, not an ontology magician.]]
[[Sjir: therefore there is a need for a comprehensive protocol
how to develop and validate a Conceptual Schema (a la ISO TR9007).]] Sjir Nijssen
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