True Capability: A Statistical Process control concept Quantitatively linking Product variability with Process variability

Author:  Roger Simpson, Sydney Terry
Source:  Conf Proc: ICSP-5 (p. 39-48)
Doc ID:  1993017
Year of Publication:  1993
Abstract:  
Typical approaches to statistical process control assume that process specifications against which process variability is being statistically measured are tightly held with no unexplained significant variations as relates to acceptable and /or unacceptable product variability.