Monday, October 8, 2007


Motorola: The Birth Place of Six Sigma

Six Sigma is a business initiative first espoused by Motorola in the early 1990s. Recently Six Sigma success stories, primary from the likes of General Electirc, Sony, and AlliedSignal, have captured the attention of Wall Street and have propagated the use of this business strategy.

The Six Sigma project executioners are sometimes called "black belts", "top guns", "change agents", "trailblazers", or "jedi" depending on the company deploying the strategy. This people are trained in the Six Sigma philosophy and methodology and are expected to accomplish at least four projects annually, which should deliver at least $1,00,000 annually to the bottom line._

Frequently Asked Questions About Six Sigma

What is Six Sigma?
The term sigma is a Greek alphabet letter (s ) used to describe variability, where a classical measurement unit consideration of the program is defects per unit.
Two major meanings in “Six Sigma”

A “Sigma quality level ” offers an indicator of how often defects are likely to occur, where the higher sigma quality level indicates a process that is less likely to create defects.
A “Six Sigma quality level ” is said to equate to 3.4 defects per million opportunities (DPMO), as described in Six Sigma Fundamental Section.

A “Six Sigma Methodology ” is a business process that allows companies to drastically improve their bottom line by designing and monitoring everyday business activities in ways that minimize waste and resources while increasing customer satisfaction.

What’s the different between Quality Control Program with Six Sigma?
Quality control program have focused on detecting and correcting commercial, industrial, and design defects but Six Sigma provides specific methods to re-create the process so that defects and errors never arise in the first place._

What is the practical difference between Three and Four Sigma Quality level?
To a first approximation, a three sigma quality level is equivalent to 1.5 misspelled words per page in a book. A six sigma quality level is equivalent to one misspelled word in all of the books in all library.

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