The Standard, Normal, and the Expedited change classes, have a very similar process flow. The exception is that Standard changes are approved only by the Change Coordinator and Change Manager, while Normal and Expedited changes are approved by Change Coordinators, Change Managers, CAB approvers, and technical approvers (ad hoc or mapped).

The Emergency, Latent, and No Impact changes follow a different processing path and must be defined within their own process flow to determine what status and stages to skip within the standard flow process.