Application User Level Access

Hi All,

In my applications I have added a user table where there will be field to define the user level.

Level - 1 Admin: can add users and has access to all Level - 2 Manager - cannot add user but has access to all others Level - 3 Operator - can add transactions but cannot create masters (eg. add/edit a customer)

Now in the master entry forms in the Add & Edit button I can put some code to prevent Level 3 users from adding or editing.

I want Level - 3 users to be able to view the masters. So for them add & edit button will be disabled or some code will b there to tell them they have no access.

Is there a better way? Any ideas which u are implementing are welcome.