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Implement a security policy

What is the best way to implement a security policy on a menu-based legacy application? I am contemplating putting up a physical file containing the name of user groups and the programs they are authorized to use. A CL program can then be run to set the authorities as per the information in the pf. Is there any better way around?

From what you asked in your question, I am going to make the following assumptions:

- You are going to secure the interfaces that manipulate the data (that is, programs) rather than securing the data itself

- You have already use group profiles as part of your security implementation

One way to simplify the approach is if programs can be grouped by usage. For example, if a user is authorized to menu option 3, they also get menu option 4, 5 and 6. You could then secure the programs, Opt_3, Opt_4, Opt_5 and Opt_6 with an authorization list. The groups needing authority to this set of menu options can then be given *USE authority to the authorization list.

The program with this approach is if users could have authority to use menu option 4 but are restricted from 3, 5 or 6. Then you might as well just give the group*USE to the program itself.

Perhaps another approach would be to secure the data files rather than the interfaces accessing the data files ... ?

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