ABSTRACT
The authors recommend a methodology that takes the best of four process improvement methodologies (lean, Six Sigma, Theory of Constraints, and SCOR) while overcoming the limitations of those tools. Related entries describe those limitations. The SIR is the result. It meets the authors' five criteria:Designed and operated to meet the business' value propositionIncludes all trading partnersUses best practicesRelies on customers' definition of value addedContains facilitated continuous improvement
