Re: [ubl-lcsc] FW: CCTS Imp Verif V0p1

["Anthony B. Coates" <abcoates@londonmarketsystems.com>]

** Reply to message from "Stuhec, Gunther" <gunther.stuhec@sap.com> on Fri, 27
Jun 2003 18:11:10 +0200

> this is revised version from Lisa.

Being new to the group, I hadn't seen this document before.  My immediate
comment is that the discussion of "how do identifiers differ from codes" isn't
complete.  A code is a simple data type used for identification (some codes are
unique identifiers, some are not).  An identifier is a collection of one or
more codes (including names) used to uniquely identify something.  Where an
identifier contains just a single code, it can be hard to decide whether to
call it a code or an identifier.  Typically, it will be called an "identifier"
for a core business object, and a "code" for an ancillary object.

In finance, we have "instrument identifiers", because financial instruments are
core business objects.  We refer to country codes and currency codes as they
have a more ancillary role.  However, for someone trading currencies, it is
appropriate to think of "currency identifiers", although these are actually
instrument identifiers for currency related financial instruments.

That is how I see the distinction being made, anyway.

	Cheers,
		Tony.
====
Anthony B. Coates
London Market Systems Limited
33 Throgmorton Street, London, EC2N 2BR 
http://www.londonmarketsystems.com/
mailto:abcoates@londonmarketsystems.com
Mobile/Cell: +44 (79) 0543 9026
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