Which of the following BEST indicates that a change management process has been implemented successfully?

Maturity levels describe the sophistication and repeatability of the process itself, not necessarily its success in achieving desired change outcomes.

Degree of control indicates how well the process manages changes, but not whether those changes ultimately deliver the intended positive results.

Process performance measures how efficiently and effectively the change process operates, but doesn't inherently confirm if the changes themselves were successful in terms of business value.

Outcome measures provide quantifiable evidence of the actual results and impacts of changes made, such as reduced incidents, improved service availability, or increased user satisfaction. They directly demonstrate whether the change management process achieved its objectives and delivered value to the organization.