Requires CAB attention (approval, review, etc.)

Change awaiting approbations before beeing performed.

All approbations received, all parties ok with the change.

Change has been applied (emergency, incident resolution, etc.) and has to be reviewed by the different parties.

This will bring a huge increase in performance/productivity/usability, or is a legislative requirement

Emergency change request, usually on incident, to be reviewed by the CAB for review after.