Dear All,
Here my proposal for revision of the scope note of E53 Place:
*OLD:*
E53 Place
Subclass of:
E1 <#_toc7281> CRM Entity
Scope note:
This class comprises extents in space, in particular on the surface of
the earth, in the pure sense of physics: independent from temporal
phenomena and matter.
The instances of E53 Place are usually determined by reference to the
position of “immobile” objects such as buildings, cities, mountains,
rivers, or dedicated geodetic marks, but may also be determined by
reference to mobile objects. A Place can be determined by combining a
frame of reference and a location with respect to this frame.
It is sometimes argued that instances of E53 Place are best identified
by global coordinates or absolute reference systems. However, relative
references are often more relevant in the context of cultural
documentation and tend to be more precise. In particular, we are often
interested in position in relation to large, mobile objects, such as
ships. For example, the Place at which Nelson died is known with
reference to a large mobile object – H.M.S Victory. A resolution of this
Place in terms of absolute coordinates would require knowledge of the
movements of the vessel and the precise time of death, either of which
may be revised, and the result would lack historical and cultural relevance.
Any instance of E18 Physical Thing can serve as a frame of reference for
an instance of E53 Place. This may be documented using the property
/P157 is at rest relative to (provides reference space for)/.
*NEW:*
E53 Place
Subclass of:
E1 <#_toc7281> CRM Entity
Scope note:
This class comprises extents in *the* natural space *we live in*, in
particular on the surface of the earth, in the pure sense of physics:
independent from temporal phenomena and matter. *They may serve
describing the physical location of things or phenomena or other areas
of interest. Geometrically, instances of E53 Place constitute single
contiguous areas or a finite aggregation of contiguous, mutually
disjoint areas in space. They may have fuzzy boundaries.*****
The instances of E53 Place are usually determined by reference to the
position of “immobile” objects such as buildings, cities, mountains,
rivers, or dedicated geodetic marks, but may also be determined by
reference to mobile objects. A Place can be determined by combining a
frame of reference and a location with respect to this frame.
It is sometimes argued that instances of E53 Place are best identified
by global coordinates or absolute reference systems. However, relative
references are often more relevant in the context of cultural
documentation and tend to be more precise. In particular, we are often
interested in *positions* in relation to large, mobile objects, such as
ships. For example, the Place at which Nelson died is known with
reference to a large mobile object – H.M.S Victory. A resolution of this
Place in terms of absolute coordinates would require knowledge of the
movements of the vessel and the precise time of death, either of which
may be revised, and the result would lack historical and cultural relevance.
Any instance of E18 Physical Thing can serve as a frame of reference for
an instance of E53 Place. This may be documented using the property P157
is at rest relative to (provides reference space for).
--
------------------------------------
Dr. Martin Doerr
Honorary Head of the
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
Vox:+30(2810)391625
Email: [email protected]
Web-site: http://www.ics.forth.gr/isl
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