I would add that, to be meaningful, this tier should be enforcing someQuote:> 3-Tier client server has the GUI application requesting data from an
> intermediate layer (the business services layer) and the intermediate tier
> accessing the database.
sort of enterprise-wide business rules. Examples of these are
consistency rules, calculated fields, triggers, etc.. The merits of this
are that your business rules are put in one place where they can be
consistently enforced. Do not underestimate the amount of work required
to set this up properly.
Comsys Millennium Services
eMail: remove NoSpam from above
Standard disclaimer - I speak for myself and nobody else.