Business Layer, Data Access Layer. Is there any resource to learn how to make relation between Business layer classes with Data Access layer classes?

Question

Business Layer, Data Access Layer. Is there any resource to learn how to make relation between Business layer classes with Data Access layer classes?

Answer 1

Have a look at these microsoft guidelines : It's a start point !

Answer 2

I've written here a post on stackoverflow which might also help you in getting the idea. That's basically the approach we're adopting in the .Net world.

A must have, if you really want to do it the "right" way is to look into dependency injection frameworks:

• .Net: Unity (MS Enterprise Library), Spring.net
• Java: Spring Framework

These are some popular once.

Edit:
This might as well help you.