AIM-07: measure the number of times the account of the terminated person is represented in the logs as active between termination of employee and deactivation of account. If this number is non-zero, the control is not effective.

[pritikin]

This is a proposed effectiveness metric from Walt Williams

IAM-07-M1
To test for effectiveness, you need to measure the number of times the account of the terminated person is represented in the logs as active between termination of employee and deactivation of account. If this number is non-zero, the control is not effective.