Before altering an Active Directory schema class, it is important to confiri the following:

1. Verify that changes are consistent with the design goals of the environment
2. Analyze the possible effects of the change
3. Ensure that you have appropriate authority to make the change
4. Backup your domain controller
5. Test the change in a test environment
6. When ready, make the change to the production environment
7. Verify that the change took effect correctly