The stages of the Engineering Change Order are 1) Issue Identification and Scoping, 2) An engineer change request is created, 3) the engineer change request is reviewed, 4) The engineer change order is created and reviewed, 5) the change order circulates to each department, 6)if approved the change is implemented. The benefits of the ECO is that it provides a way to keep product development changes on track as well as keeping it as accurate as possible. If necessary, an engineer can go back and view the change history as well.

More in-depth information can be found at arenasolutions under engineer change order