While the computations for a process behavior chart are completely general and very robust, the secret to using a process behavior chart effectively lies in the art of rational sampling and rational subgrouping.

Editor’s note: Quality Digest will present Richard DeRisio’s webinar, “Effective Strategies for Complaint Handling” on May 19, 2015, at 2 p.m. Eastern, 11 a.m.

Risk mitigation, risk assessment, risk management: We insure ourselves against risk, put buffers in our estimates to compensate for risk, and we make decisions based on risk. Or do we?