Dear All, I generally agree with Martin,
Material Substantial has metaphysical connotations since it is diffucult to speak about the "matter" initself without the mediation of a subject-person who observes. that is why it is better to use the term "phenomenon" and not "matter" or thing in itself. it may be the case that all the observes agree upon the "substantial Matter" of a thing but that daes not mean that we really have directly access to it. best regards Maria ________________________________ From: Crm-sig <[email protected]> on behalf of martin <[email protected]> Sent: Tuesday, October 3, 2017 5:19 PM To: crm-sig Subject: [Crm-sig] Issue 293 Observable Entity 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 -- -------------------------------------------------------------- Dr. Martin Doerr | Vox:+30(2810)391625 | Research Director | Fax:+30(2810)391638 | | Email: [email protected]<mailto:[email protected]> | | Center for Cultural Informatics | Information Systems Laboratory | Institute of Computer Science | Foundation for Research and Technology - Hellas (FORTH) | | N.Plastira 100, Vassilika Vouton, | GR70013 Heraklion,Crete,Greece | | Web-site: http://www.ics.forth.gr/isl | --------------------------------------------------------------
