Importance To Industrial and Quality Management
A special-cause failure is a failure that can be corrected by changing a component or process, whereas a common-cause failure is equivalent to noise in the system and specific actions cannot be made to prevent the failure.
Harry Alpert observed:
- A riot occurs in a certain prison. Officials and sociologists turn out a detailed report about the prison, with a full explanation of why and how it happened here, ignoring the fact that the causes were common to a majority of prisons, and that the riot could have happened anywhere.
The quote recognises that there is a temptation to react to an extreme outcome and to see it as significant, even where its causes are common to many situations and the distinctive circumstances surrounding its occurrence, the results of mere chance. Such behaviour has many implications within management, often leading to ad-hoc interventions that merely increase the level of variation and frequency of undesirable outcomes.
Deming and Shewhart both advocated the control chart as a means of managing a business process in an economically efficient manner.
Read more about this topic: Common Cause And Special Cause (statistics)
Famous quotes containing the words importance to, management, quality, importance and/or industrial:
“The importance to the writer of first writing must be out of all proportion of the actual value of what is written.”
—Elizabeth Bowen (18991973)
“This we take it is the grand characteristic of our age. By our skill in Mechanism, it has come to pass, that in the management of external things we excel all other ages; while in whatever respects the pure moral nature, in true dignity of soul and character, we are perhaps inferior to most civilised ages.”
—Thomas Carlyle (17951881)
“Indeed, it is that ambiguity and ambivalence which often is so puzzling in womenthe quality of shifting from child to woman, the seeming helplessness one moment and the utter self-reliance the next that baffle us, that seem most difficult to understand. These are the qualities that make her a mystery, the qualities that provoked Freud to complain, What does a woman want?”
—Lillian Breslow Rubin (20th century)
“... women especially seem to have very little idea of the importance of business time.”
—Caroline Nichols Churchill (1833?)
“Predatory capitalism created a complex industrial system and an advanced technology; it permitted a considerable extension of democratic practice and fostered certain liberal values, but within limits that are now being pressed and must be overcome. It is not a fit system for the mid- twentieth century.”
—Noam Chomsky (b. 1928)