Free App for Process Capability Study 2.0

A free app for conducting a process capability study is available. With traditional process capability Cp, Cpk, Pp, and Ppk indices reporting, there are fundamental “elephant in the room” problems that this app resolves.

These not-talked-about process capability indices reporting issues include:

  • Is the process stable? If the process is not stable, reported process capability indices values are invalid. How would someone know if a process is stable since a traditional process-capability-report-out only provides process capability indices, no time-series information?
  • Is the collection of data relative to subgrouping appropriately considered and analyzed? Cp and Cpk values could be dramatically different for data-subgrouping versus no-data-subgrouping the response from a process.
  • Is any data non-normality considered appropriately in the reported process capability numbers? Traditional Cp, Cpk, Pp, and Ppk report-outs do not address data non-normality effectively.
  • How can a process capability statement be determined when there is no specification? A specification is a requirement for traditional process capability reporting; however, organizations need to understand the “capability” of a process that does not have an actual specification; e.g., the lead-time response from an operation.
  • How can a statistical process improvement be effectively communicated (and when any change occurred) with process capability indices reporting, so there is no confusion? Someone cannot achieve this important objective with a traditional process capability report-out, which does not include process tracking over time.
  • Should a Cp and Cpk criteria or Pp and Ppk criteria be specified for a process-output response? Organizations often select a Cp and Cpk criteria; however, the determination of these values from subgrouped data only reflects the variability within subgroups. Between subgroup-variability can be a critical consideration when determining how well a process performs relative to a customer’s specification.
  • What physically do process capability indices truly mean relative to the achievement of customer requirements so that the report-out leads to the most appropriate actions or non-actions? Everyone throughout an organization should easily understand from a report-out how well a process performs relative to customer desires, which traditional Cp, Cpk, Pp, and Ppk reporting does not provide.

Process Capability Study 2.0 with a Free App

Over the years, many of my annual Quality Progress and other ASQ articles describe the benefits of 30,000-foot-level response output response tracking, which addresses all of the previously listed traditional process-capability problems – and more.

A free app is now available for creating 30,000-foot-level charts.  This stand-alone app does not require any statistical software and is not an Excel add-in. This app can address various process output data formats:

  • No subgrouping
  • Subgrouping
  • Attribute

process capability study 2.0

One can assess this free process-metric-response app to create 30,000-foot-level charting (which provides enhanced process capability study response reporting) via the link www.smartersolutions.com/eprs-metrics-software.

For additional information about the described 2.0 process capability study methodology. see the article in the referenced link below.

 

ASQ Quality Progress October 2021 published article titled “An App Alternative: New process capability reporting app and how-to business management enrichments” by Forrest Breyfogle describes the creation of metrics reporting from a high-level point of view that leads to long-lasting process improvements. Downloaded this article through the following link.

 

Contact Us to set up a time to discuss how your organization might gain much from an Integrated Enterprise Excellence (IEE) Business Process Management System and its business goal setting methodology with achievement tracking approach.  

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