This enhancement to process capability indices cp and cpk reporting provides improved clarity into how a process is performing relative to customer needs and specifications.
Enhancing Process Capability Indices Cp and Cpk Reporting
Measurement issues can be prevalent at all levels of an organization. To add to this dilemma, the basic calculation and presentation of metrics can sometimes be deceiving. Organizations often state that suppliers must meet process capability objectives, typically measured in Cp, Cpk, Pp and Ppk.
The person who is requesting these objectives often do not realize that these reported numbers can be highly dependent upon how data are collected and interpreted.
Also, these process capability metrics typically are utilized only at a component part level. To resolve these issues, practitioners need a common, easy-to-use fundamental measurement for making process stability and capability assessments at all levels of a business, independent of who is making the assessment – something beyond Cp, Cpk, Pp and Ppk. More elaboration about these issues is provided in the Internet published article provided below.
An alternative that addresses the issues and confusion of traditional process capability reporting is 30,000-foot-level predictive reporting, which provides predictive performance metrics using terminology that everyone can easily understand. The Integrated Enterprise Excellence (IEE) business management system provides the roadmap for usage of this form of performance metric reporting at all levels of the business. One application of this form of reporting is lean Six Sigma improvement project performance metric baseline and then demonstration of improvement. Another application is creation of futuristic reporting of business management scorecards, which can be aligned with the processes that created them through an IEE value chain.
Details about the IEE system is available in a 5-book set, where 30,00-foot-level predictive reporting is described in detail for both continuous and attribute data in chapters 12 and 13 of IEE Volume 3.
Contact Us to set up a time to discuss with Forrest Breyfogle how your organization might gain much from IEE enhancement to traditional process capability indices cp and cpk reporting.