Dear All,
My opinion about "observable entities" is the following:
A) An observation observes a Situation, in the sense defined previously:
A set of property instances holding at some time.
B) S4 Observation is a special case of Observation in CRMInf, a single
property observation
C) "observable situations" should be: 1) observable relations between
Observable Entities, 2) Observable qualities of Observable Entities 3)
Dimensions of Observable Entities.
D) Given that, there is a constraint to the domain or range of any
property instance observed to be an "Observable Entity".
Then, we can identify Events, Material Substantials and Symbolic
Objects(via carrier) to be observable. Measuring water or atmospheric
properties could be identified as measuring "the atmosphere" constraint
to a particular place. In that case, we would need a spatiotemporal
container for the Situation, not only a temporal one.
I would not like to introduce the Material Substantial into CRM"base".
We can generally declare that Observable Entities do have Dimensions, as
a special case of what is observed.
Then we may engage in identifying properties with a "observable"
substance, such as structural properties.
Opinions?
Martin
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Dr. Martin Doerr | Vox:+30(2810)391625 |
Research Director | Fax:+30(2810)391638 |
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Center for Cultural Informatics |
Information Systems Laboratory |
Institute of Computer Science |
Foundation for Research and Technology - Hellas (FORTH) |
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