Dear Thanasi,
On 2/19/2019 7:13 PM, Athanasios Velios wrote:
Thank you Francesco and Martin for articulating my question properly. I
can understand that we can already deal with the fuzzy temporal
boundaries of a phase. Martin's "observable properties" makes it clearer
for me and perhaps it is worth emphasising in the scope note.
1) Examples of observable properties in conservation:
* "pitting" is a type of damage on metals where small pits are formed on
the surface filled with metal salts and oxides. The existence of
white/light green powder in localised spots on copper is one property to
help observe pitting.
So the surface enters a phase of developing pitting?
* "not functional" is what we call machines in industrial heritage
collections which used to perform a function, such as a printing
machine, but they no longer do because they are broken. The observable
property is that the machine has the capacity to print paper.
Yes
2) However, thinking about this further (and I hope I am not going into
circles) I am struggling to articulate the differences between Phase and
E3 Condition State. They both apply to E18 Physical Thing. Martin says
in an email on 22/11/2018 that "Phase is like Condition State bound to
the evolution of a thing". This sounds like it should be a sub-class of
Condition State, i.e. states that are only related to evolution.
Francesco, if I understood correctly, refers to change of state also for
non E18 Physical Things, i.e. epistemological as well as phenomenal (is
this correct Francesco?).
I meant "Phase" to be superclass of Condition State. I wrote "but some
kinds of phases may also be consequence of incidental changes such as
accidents." to make clear that it is not only evolution.
3) I propose to change the first sentence of the scope note from:
"This class comprises phases during the existence..."
to:
"This class comprises temporal spans(?) during the existence..."
to avoid saying that a "Phase is a phase".
Yes, I know I made something nearly cyclic here, but I narrowed a
general notion of phase very much down by the following conditions. I
was tempted to write time span in order to avoid "phase", but I have the
impression that would come too close to the epistemological point of
view of arbitrariness. If we talk about a "phase", I at least imply much
more of a substantial coherence within the phase. Indeed, the comments
we received so far suggest that "phase" in the linguistic sense is a
much wider concept.
We could add and adjective to my definition to make it clearer, but I
found no good adjective either (material? substantial? behavioural? all
seems to be more special).
All the best,
Martin
All the best,
Thanasis
On 19/02/2019 11:12, Martin Doerr wrote:
Dear Thanasi,
I understand. This may need more elaboration. The type of the phase
determines the characteristic observable properties. We should see
examples.
These properties may begin and end fuzzily, but that does not affect the
concept, as long as inner-outer bounds can be assigned.
Best,
martin
On 2/18/2019 11:38 PM, Athanasios Velios wrote:
I like this scope note but my only concern is that an observer cannot
tell when one phase ends and the next one begins. How can we explain
that a phase is no longer?
All the best,
Thanasis
On 17/02/2019 19:44, Martin Doerr wrote:
Dear All,
Here a first attempt to define "phase":
Exxx Phase
Subclass of: E2 Temporal Entity
Superclass of:E3 Condition State
Scope note:This class comprises phases during the existence and
evolution of an instance of E18 Physical Thing characterized by an
appearance, constitution or a behavior distinct from that in other times
of its existence, or distinct in the evolution of things of comparable
kind, such as the nestling, fledgling, juvenile and adult forms of
birds, but some kinds of phases may also be consequence of incidental
changes such as accidents.
Best,
Martin
--
------------------------------------
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
_______________________________________________
Crm-sig mailing list
[email protected]
http://lists.ics.forth.gr/mailman/listinfo/crm-sig
This email and any attachments are intended solely for the addressee
and may contain confidential information. If you are not the intended
recipient of this email and/or its attachments you must not take any
action based upon them and you must not copy or show them to anyone.
Please send the email back to us and immediately and permanently
delete it and its attachments. Where this email is unrelated to the
business of University of the Arts London or of any of its group
companies the opinions expressed in it are the opinions of the sender
and do not necessarily constitute those of University of the Arts
London (or the relevant group company). Where the sender's signature
indicates that the email is sent on behalf of UAL Short Courses
Limited the following also applies: UAL Short Courses Limited is a
company registered in England and Wales under company number 02361261.
Registered Office: University of the Arts London, 272 High Holborn,
London WC1V 7EY
_______________________________________________
Crm-sig mailing list
[email protected]
http://lists.ics.forth.gr/mailman/listinfo/crm-sig
This email and any attachments are intended solely for the addressee and may
contain confidential information. If you are not the intended recipient of this
email and/or its attachments you must not take any action based upon them and
you must not copy or show them to anyone. Please send the email back to us and
immediately and permanently delete it and its attachments. Where this email is
unrelated to the business of University of the Arts London or of any of its
group companies the opinions expressed in it are the opinions of the sender and
do not necessarily constitute those of University of the Arts London (or the
relevant group company). Where the sender's signature indicates that the email
is sent on behalf of UAL Short Courses Limited the following also applies: UAL
Short Courses Limited is a company registered in England and Wales under
company number 02361261. Registered Office: University of the Arts London, 272
High Holborn, London WC1V 7EY
_______________________________________________
Crm-sig mailing list
[email protected]
http://lists.ics.forth.gr/mailman/listinfo/crm-sig
--
------------------------------------
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
