- From: Jim McCusker <mccusj@rpi.edu>
- Date: Thu, 21 Jul 2011 16:09:13 -0400
- To: Paolo Missier <Paolo.Missier@ncl.ac.uk>
- Cc: public-prov-wg@w3.org
I think we're still going around in circles. Entity: A thing in the world, can be represented by, for instance, a URI. That URI, in PIL, is a pil:Entity. BOB: A description of an entity constrained by context (including time and place). The description is not the entity, even within our information representation. A BOB must be able to refer to something. That BOB is a description of an entity, but does not REPRESENT the entity. Jim On Thu, Jul 21, 2011 at 3:45 PM, Paolo Missier <Paolo.Missier@ncl.ac.uk> wrote: > Hi, > > I would advise against using the same terms with different typographical > convention :-) > > what the document perhaps needs to clarify more upfront is that there is a > "real world" and then a model of it, and the constructs of the language are > about the model. It does say that but perhaps not strongly enough. > - Characterized entity belongs in the world > - BOBs belong in the data model that is a representation of the world. > These two levels are never conflated. > > The good old "record linkage" community (data quality in databases) never > had any qualms about using "real-world entities", as in "reconciling > different records (BOBs?) that represent the same real-world entity". > In their world (pun intended :-)), a record is a very concrete data > structure that sits in a data store and you can display on a screen. > Now, we cannot use "record", we have ruled out "information(al) resource"... > but isn't that basically the territory? > Entity representation? > > -Paolo > > > On 7/21/11 8:33 PM, Luc Moreau wrote: > > Hi Khalid, > OK. This said we have over 20 occurrences of "characterized entity" in the > text. > > We can't simply use the "expansion" everywhere. Having some terminology is > desirable. > > Do you have a suggestion? > > We could also go for a typographic difference: > BOB -> CharacterizedEntity > and we keep 'characterized entity' elsewhere. > > Luc > > On 21/07/2011 20:27, Khalid Belhajjame wrote: > > Hi Luc, > > I guess I used the wrong term, "interchangeable". I guess that what I meant > is that "Characterized Entity" can be considered as a candidate to replace > "BOB". Of course, in that case, we will need to avoid the usage of the the > term "characterized entity" in the core of the definition. E.g., we can use > the following definition: > > A "Characterized Entity" is a description of the situation of an entity in > the world. > > Or something in these lines. > > Thanks, khalid > > On 21/07/2011 19:54, Luc Moreau wrote: > > Hi Khalid, > > As far as I know, they are *not* interchangeable. One is the language > construct, the other is "in the world". > > cf. definition: > > A BOB represents an identifiable > characterized entity. > > Should we go for "Characterized Entity", we need a typographic > convention to distinguish between > > the construct and the world-thing, otherwise, the reader will never > know whether this is language construct > > or not. > > > Luc > > On 21/07/2011 19:45, Khalid Belhajjame wrote: > > In the Provenance Model initial draft, the terms "Bob" and "characterized > entity" are used interchangeably. > Characterized entity seems then to be a candidate for replacing BOB. > > Thanks, khalid > > On 21/07/2011 19:30, Provenance Working Group Issue Tracker wrote: > > PROV-ISSUE-30 (name-for-bob): What name do we use for the BOB construct? > [Conceptual Model] > > http://www.w3.org/2011/prov/track/issues/30 > > Raised by: Luc Moreau > On product: Conceptual Model > > How do we call the construct referred to as BOB. "BOB" was introduced as a > placeholder at F2F1. Before F2F1, we use to refer to it as thing. > > > > > > > > > -- > ----------- ~oo~ -------------- > Paolo Missier - Paolo.Missier@newcastle.ac.uk, pmissier@acm.org > School of Computing Science, Newcastle University, UK > http://www.cs.ncl.ac.uk/people/Paolo.Missier > -- Jim -- Jim McCusker Programmer Analyst Krauthammer Lab, Pathology Informatics Yale School of Medicine james.mccusker@yale.edu | (203) 785-6330 http://krauthammerlab.med.yale.edu PhD Student Tetherless World Constellation Rensselaer Polytechnic Institute mccusj@cs.rpi.edu http://tw.rpi.edu
Received on Thursday, 21 July 2011 20:10:02 UTC