Multi-tier architecture..

[Indian]

Hi!
Can any one explain what it is?
Got tired referring the books and didn't understand it.
Any site reference also gr8ly appreciated.
Thanks for the replies.


Indian.

[Crazy D]

In very short, it means 'splitting up your project'...
eg. you have a database project, then the multi-tier way to go is:
1. class that access the database
2. class with your businessrules
3. application which uses the class (2) to access and update date).

1 is basically a crecordset class
2 is classes special for 1 table in which you check if entered values are correct
3 is the interface, and nothing more then that.. values are passed thru to the class (2) which validates and either updates or give back an error

(at least this was enough to let my boss think classes are the way to go, and now I may use classes... :-)

[Indian]

thanx a lot.
Indian.