You will not be an expert in SPC once
you have read this chapter. You will, however, have a very basic understanding of
what SPC is about and where your organization might start.
Those of you who are experts at SPC can skip this chapter. However, for those
of you who are experts who decide to read this chapter, we ask a little leeway.
Everyone has a different approach to SPC??”what should be used, what works best,
definitions. We also have our own opinions, which may differ from yours. This
236 n Interpreting the CMMI
chapter is also written to be understood, not to impress anyone with high-falutin??™
terminology or inscrutable examples, so the terminology used may be somewhat
irritating to a few of you.
One more thing. Data are plural. Although most folks generally say, ???the data
is not yet available,??? proper grammar is to say, ???the data are not yet available.??? So it
may sound a little funny when you read it.
Background information
What is Statistical Process Control? SPC consists of some techniques used to help
individuals understand, analyze, and interpret numerical information.
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