Final answer:
An effective metric owner in Six Sigma should document the mathematical model of operation and ensure stakeholder participation to demonstrate the design's effectiveness and performance.
Step-by-step explanation:
As Six Sigma teaches, an effective metric owner must ensure that the mathematical model of operation is well documented, thereby establishing a basis for performance and effectiveness of the design. It is vital to document the model to demonstrate how effectively the design meets the client's needs.
The participation of all levels of stakeholders is crucial to the success of an evaluation project, not just the leadership or individuals seeking the evaluation.