RE: Application design

["Booth Martin" <Booth@xxxxxxxxxxxx>]

I did feel I'd picked a good example, yes.  I've learned that all the
problems we face in the business environment are present in this example.

But Joe... you answered a question I didn't ask.  I said "adding an address"


Where I was going with this example was i wanted to see which layer
determined that "Qu" was an invalid entry, and how it would respond.


---------------------------------------------------------
Booth Martin   http://www.MartinVT.com
Booth@MartinVT.com
---------------------------------------------------------

-------Original Message-------

From: midrange-l@midrange.com
Date: Tuesday, November 26, 2002 12:37:13 PM
To: midrange-l@midrange.com
Subject: RE: Application design

> From: Booth Martin

>

> Right. Good idea. Lets see an example Joe. Perhaps a simple

> example:adding an address to a person's name. They live in Quebec, Canada

> and have provided "Qu" as their province. (Quebec is usually "PQ")

>

> We don't need real code, but what does get done where?


This actually kind of a cool example. Let's say that you start out with a
standard customer file, with a customer name, address and all that jazz.
You might define a business entity to be "Address", which contains a bunch
of attributes, including street address, state/province, postal code, and so
on.

Your code is simple:

GetAddress(customer)