Re: Biz Modeling - let's try again

topmind wrote:
I feel that my complaints about how OO not seeming to offer practical
improvements for custom biz apps perhaps took the wrong approach.

Let's focus on *business modeling*. For the time being, let's FORGET
about swapping "external services" such as databases, FTP, GUI's etc.
and whether we should wrap them or not. We'll just assume they are
available and we will use them if needed. We'll save the wrapping
debates for another day.

Instead, let's focus on the *domain* itself. Let's focus on
objects/classes such as employees, airline flights, stocks, report
cards, sales campaigns, etc.

I would like some practical examples of how OO, and polymorphism in
particular, helps with these domain objects/entities/things.

It's been awhile since I read it, but as I recall, Eric Evans had such examples in his book "Domain driven design". They were probably stripped down real life scenarios, but then - it is difficult (if at all possible) to present complex real life scenario, which took months of communication between client and developers, in a limited space.

Sasa
.