Design Scorecards Technique

For any solution, a performance expectation such as "reliability" would likely be tracked with a metric called "mean time between failures." This metric, in turn, is included in your Design Scorecards (Technique 39) for that solution. 

Performance expectations are the Key Performance Indicators (KPIs) on which you ll focus your design and optimization efforts, and which you will track over time with your Design Scorecards (Technique 39) and/or Process Behavior Charts (Technique 52). 

While the purpose of Design Scorecards is to prevent problems, defects, and errors through superior design, they also enable better problem detection after a new solution (design) is implemented. If you are in detect-and-fix mode, any number of process-optimization techniques may help, such as Process Behavior Charts (Technique 52), Cause Effect Matrix (Technique 54), Mistake Proofing (Technique 49), and Design of Experiments (Technique 50). 

---