The process capability index (or capability indices) explained in this recorded webinar are Cp, Cpk, Pp, and Ppk, along with an enhanced reporting methodology. No sign-in is required to view this webinar.
Topics Covered in this Process Capability Index Webinar
When a specification exists
- Cp/Cpk/Pp/Ppk
- Sigma Level and DPMO (defect per million opportunities)
- Z-score
- Percent non-conforming or Yield loss
When no specification exists (Note: This is a situation that cannot be addressed using a traditional process capability index calculation approach.)
Webinar: Process Capability Index Explained
Explanation: An Enhanced Approach to Process Capability Index Reporting
As the webinar describes, there are some fundamental issues with traditional process capability reporting. For more elaboration about process capability index calculation and its enhancements see Resolving Process Capability Index Issues For Cp, Cpk, Pp, Ppk.
The Integrated Enterprise Excellence (IEE) business management system 30,000-foot-level performance metric reporting approach has many advantages over traditional process capability index reporting, as noted in the webinar.
An example 30,000-foot-level report-out, when specification criteria exists is:
In the above 30,000-foot-level report-out, an individuals chart indicates process stability, while the probability plot on the right is used to determine a percentage beyond the specification limits of 72-78. This percentage beyond the specification limits value is then reported as a capability statement at the bottom of the report-out.
This easy-to-understand language for process capability reporting is also a predictive statement, since the individuals chart is stable. Note, if a futuristic statement is not desirable, something needs to be done differently to improve the process.
An example 30,000-foot-level report-out can also provide a “process capability” (i.e., how the process is basically performing) statement, when no specification criteria exists.
An example of this report-out is:
The probability plot now (because there is no specification) uses the 90, 50, and 10 percentage points to provide a process capability statement (i.e., a high-level overview of how the process is performing) shown at the bottom of the report-out.
An Enhanced Approach for Scorecards in an Overall Business Management System
A 30,000-foot-level approach for tracking metrics can be used throughout an organization via the IEE enhanced business management system methodology. An IEE system addresses the business scorecard and improvement issues described in a 1-minute video:
Contact Us to set up a time to discuss with Forrest Breyfogle how your organization might gain much from an Integrated Enterprise Excellence (IEE) Business Process Management System and its enhancements for process capability reporting.