--- a/model/satya-comments-issue-101.txt Mon Nov 07 11:14:50 2011 +0000
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,66 +0,0 @@
- > Hi, My review comments for Section 5.2.2 Process Execution in the
- > current version of the conceptual model document:
- >
- > Similar to issue with Entity, why are defining Process Execution
- > expression?
-
-We now define records. Terminology 'record' has been (hopefully
-consistently) used across the whole document.
-
- >
- > 1. The activity that a process execution expression is a
- > representation of has a duration, delimited by its start and its end
- > events; hence, it occurs over an interval delimited by two
- > events. However, a process execution expression need not mention time
- > information, nor duration, because they may not be known.
- >
- > Issue: Is it possible that event information, similar to time
- > information, may not be known? Is it possible to define a PE without
- > having knowledge about its start and end events and also its duration
- > (delimited by events)?
-
-Yes, in fact, we don't assert the start/end events.
-
- >
- > 2. Further characteristics of the activity in the world can be
- > represented by other attribute-value pairs, which must also remain
- > unchanged during the activity duration.
- >
- > Issue: If we have an attribute value for pe1: status = executing at t1
- > and status = stopped at t2, would it violate the above constraint? If
- > yes, we need to rethink the above constraint.
-
-Simply, this should not be seen as attribute, since this is its status
-at given instants. It does not hold for the PE's whole duration.
-
- >
- > 3. contains a set of attribute-value pairs [ attr1=val1, ...],
- > representing other attributes of this activity that hold for its all
- > duration.
- >
- > Issue: Not sure what the above statement means by "for all its
- > durations" (typo) - are we referring to characterizing attributes (for
- > the PE) or any attribute of the PE?
-
-Changed to: For its WHOLE duration
-
- >
- > 4. A process execution expression is not an entity expression. Indeed,
- > an entity expression represents a thing that exists in full at any
- > point in its characterization interval, persists during this interval,
- > and preserves the characteristics that makes it
- > identifiable. Alternatively, an activity in something that happens,
- > unfolds or develops through time, but is typically not identifiable by
- > the characteristics it exhibits at any point during its duration.
- >
- > Issue: This is a re-phrasing of the "continuant" and "occurrent"
- > definition from the Basic Formal Ontology [1] (proposed by me in email
- > thread on PROV-ISSUE-66 [2]). I think we should cite BFO with this.
-
-Yes, this is a concept from philosophy, W. E. Johnson, Logic: Part III (1924)
-Extra citation added, referrring to the book.
-
- >
- > [1]BFO: www.ifomis.org/bfo/1.1
- > [2]http://lists.w3.org/Archives/Public/public-prov-wg/2011Aug/0038.html
- >