security for Hierarchical data model allowing users to access data specific to their region

From: muru (murugappa100@yahoo.com)
Date: 11/30/02 

From: "muru" <murugappa100@yahoo.com>
Date: Sat, 30 Nov 2002 16:11:04 -0500

Hello,

My question can be explained with a sample.

A company has offices in different geographical locations

How to implement generic security component in such a way that users of a
location should be able to access data specific to their location.

Thanks,
Muru.