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, importance, industrial, quality and/or management:
“Shall we then judge a country by the majority, or by the minority? By the minority, surely. ‘Tis pedantry to estimate nations by the census, or by square miles of land, or other than by their importance to the mind of the time.”
—Ralph Waldo Emerson (1803–1882)
“When will the world learn that a million men are of no importance compared with one man?”
—Henry David Thoreau (1817–1862)
“Revolution? Unscrew the flag-staff, wrap the bunting in the oil covers, and put the thing in the clothes-chest. Let the old lady bring you your house-slippers and untie your fiery red necktie. You always make revolutions with your mugs, your republic—nothing but an industrial accident.”
—Alfred Döblin (1878–1957)
“What was it that drove these thousands into the arms of his art—what but the blissfully sensuous, searing, sense-consuming, intoxicating, hypnotically caressing, heavily upholstered—in a word, the luxurious quality of his music?”
—Thomas Mann (1875–1955)
“No officer should be required or permitted to take part in the management of political organizations, caucuses, conventions, or election campaigns. Their right to vote and to express their views on public questions, either orally or through the press, is not denied, provided it does not interfere with the discharge of their official duties. No assessment for political purposes on officers or subordinates should be allowed.”
—Rutherford Birchard Hayes (1822–1893)