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Subject: RE: Representation Types Alternatives
Hi Mike,
The document that you have does not have the latest list; the
Editors and Hartmut worked on it last week.
You will find it in the next publication.
MK
-----Original Message-----
From: Mike Rawlins [mailto:rawlins@metronet.com]
Sent: Tuesday, April 10, 2001 9:49 AM
To: Blantz, Mary Kay
Cc: 'CRAWFORD, Mark'; ebXML-core
Subject: Re: Representation Types Alternatives
MK,
Thanks for the clarification, but that leaves me a bit confused. I
fully support the decision to base the naming conventions on ISO 11179 -
that's not the issue for me. I don't have a copy of that document, but
from the references I have found "Representation Classes" are part of
that document. However, unless I'm mistaken, the specific
"representation types" that are referenced in the Naming Conventions
document are not. I was told that the CC team developed this particular
set, and I believe that set is inadequate as it is currently specified.
Will someone who *does* have a copy of ISO 11179 please confirm for me
whether or not the specific set of representation types in the CC Naming
Conventions document does indeed come from ISO 111179? If you can give
me the citation I will withdraw my objection. However, that would still
leave the issue that the representation types of the CC Naming
Conventions and the data types of the BP modeling need to be harmonized
(I'm not saying *who* needs to change, just that they need to be brought
together ;^) ).
Mike
"Blantz, Mary Kay" wrote:
> Last week the CC Editors worked on various areas, including
> Representation Types. That is part of ourCC Naming Conventions
> document, and that team is led by Hartmut Hermes who was with us in
> London.We agreed that the best choice would be to follow an approved
> standard: 11179. As far as I know,the only deviation was in the
> definition of 'value' which is commonly used to describe the actual
> databeing sent.MKB
>
> -----Original Message-----
> From: CRAWFORD, Mark [mailto:MCRAWFORD@lmi.org]
> Sent: Monday, April 09, 2001 2:44 PM
> To: 'rawlins@metronet.com'; ebXML-core
> Subject: RE: Representation Types Alternatives
>
> Mike,
>
> I believe the Representation Types should be
> consistent with the data types of BP. Conversely, BP data
> types should support those that are available in all
> existing syntax specific instances of an ebXML document.
> For example, if there are data types available in the W3C
> schema specification that are missing from those of BP, then
> BP should be adjusted accordingly.
>
> Mark Crawford
>
>
> > -----Original Message-----
> > From: Mike Rawlins [mailto:rawlins@metronet.com]
> > Sent: Monday, April 09, 2001 2:34 PM
> > To: ebXML-core
> > Subject: Re: Representation Types Alternatives
> >
> >
> > In the week since I posted this only Bob Miller (for #1),
> and
> > Martin Bryan
> > (who agrees with me on #2) expressed any opinion (unless
> I'm missing
> > someone). Shall the editors be directed to make this
> change
> > or does anyone
> > else have anything to say about it?
> >
> > Cheers,
> >
> > Mike
> >
> >
> > Mike Rawlins wrote:
> >
> > > In my comments during the first review cycle I noted
> > several problems
> > > with representation types as they are currently
> defined. I
> > see these
> > > problems as show stoppers that must be fixed before
> final
> > approval. The
> > > 1.02 documents seem to have few changes in this area.
> I
> > suggest that
> > > the two most promising ways to handle my concerns are:
> > >
> > > 1) Formally define representation types, refining the
> current
> > > definitions
> > >
> > > 2) Adopt an existing set of data types. Several
> > candidates exist: The
> > > most likely is the set identified in the BP
> Specification Schema,
> > > section 9.1 - Data Typing. Other choices are the
> datatypes
> > defined in
> > > XML schema or UML.
> > >
> > > Before one or the other is adopted, a pertinent question
> to
> > ask first is
> > > what is the purpose of representation types? If the
> purpose is to:
> > >
> > > a) merely constrain the value space ("set of values" is
> how it is
> > > stated in the CC spec), then I suggest we take
> alternative 2 as the
> > > simplest approach. We may then define a set of
> primitive properties
> > > such as quantity, amount, etc., that are reusable and
> may
> > take the place
> > > of some of the current representation types that would
> be
> > dropped with
> > > such an approach.
> > >
> > > b) If the purpose is to constrain the value space *and*
> provide the
> > > analyst/modeler with a level of abstraction and higher
> level of
> > > reusability than the types offered by the Specification
> > Schema, XML, or
> > > UML, then we should define a set of types rather than
> adopt
> > one. When
> > > defining the set, we should fully specify all of the
> > relevant fields for
> > > each type (for example - measure has both value and
> units).
> > >
> > > I tend to favor a) since it is simpler, can probably be
> > done with less
> > > effort, and more aligned with the BP and other work.
> > >
> > > Regards,
> > >
> > > --
> > > Michael C. Rawlins, Rawlins EC Consulting
> > > http://www.metronet.com/~rawlins/
> > >
> > >
> ------------------------------------------------------------------
>
> > > To unsubscribe from this elist send a message with the
> single word
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> >
> > --
> > Michael C. Rawlins, Rawlins EC Consulting
> > http://www.metronet.com/~rawlins/
> >
> >
> >
> >
> ------------------------------------------------------------------
>
> > To unsubscribe from this elist send a message with the
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> >
>
--
Michael C. Rawlins, Rawlins EC Consulting
http://www.metronet.com/~rawlins/
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