O'Reilly logo

Statistical Process Control for Quality Improvement: A Training Guide to Learning SPC by James R. Evans - Department of Quantitative Analysis and Information Systems, College of Business Administration University of Cincinnati

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

6 Process Capability

6-1. The Concept of Process Capability

Process capability is the range over which the natural variation of a process occurs, as determined by the system of common causes (natural variations in materials, machines and tools, methods, operators, and the environment). Process capability is measured by the proportion of output that can be produced within design specifications.

You were already introduced to the basic idea of process capability in the last chapter, when we discussed applications of histograms. If you recall, we discussed lot plots and their relationship with specifications. By comparing the distribution of process output to the specifications, we can see how well the process can produce output that conforms ...

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required