Process Analysis: Beyond the Basics

Article

Persico Jr. Ph.D., John; Kildahl, David   (1991, ASQC)   Process Management Int., Bloomington, MN

Annual Quality Congress, Milwaukee WI    Vol. 45    No. 0
QICID: 9606    May 1991    pp. 57-63
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Article Abstract

The authors describe the characteristics of process structure and process dynamics for the four basic types of process defined by Kidd (1989): (1) Repetitive-Intangible, (2) Repetitive-Tangible, (3) Nonrepetitive-Intangible, and (4) Nonrepetitive-Tangible.

Process structure, which contains both tangible and intangible elements, deals with conditions necessary to produce a specific result at any given moment. Change, correlation, complexity and capability all impact process structure. The relationship of process structure to process dynamics, which deals with the effect of variables on desired outcomes, is interactive. Process structure strives to limit these variables in order to achieve only what is desirable.

Process dynamics describe the behavior of a process over time in terms of process stability and Process Elasticity. The stability of a process is dependent upon two variables: (1) Process Drift, which reflects common causes of variation, and (2) Process Sensitivity, which reflects assignable causes of variation. The elasticity of a process is the degree to which the expected outcomes can be affected by some added measure of any factor or variable.

The theories presented by the authors provide a starting point for process analysis. They define five critical elements in process analysis that organizations should understand before undertaking an in-depth examination of its processes.

Keywords

Process analysis,Process control,Quality audit,Sales,Variation,Manufacturing


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