The best way to assess the effectiveness of an access management process is to reconcile a list of accounts belonging to terminated employees. This will ensure that the access rights of the employees who have left the organization are revoked in a timely and accurate manner, and that there are no orphaned or unauthorized accounts that could pose a security risk. Comparing the actual process with the documented process, reviewing access logs for user activity, and reviewing for compliance with acceptable use policy are also useful methods, but they are not as direct and conclusive as reconciling a list of accounts belonging to terminated employees. References = CRISC Review Manual, 6th Edition, ISACA, 2015, page 217.