Control the Request Funnel
Issue identification & scoping:
Let anyone in the organization that identifies a problem or issue and determines that it may require a change. The scope of the issue and its possible impact are estimated.
Examine the necessity and feasibility of the change, to identify parts, components, and documentation that might be affected, to estimate costs, and to list the resources required to implement the change.
Circulated for review and discussion among key stakeholders to continuously modified as needed.