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Six Sigma- A methodology that furnishes tools for the improvement of…
Six Sigma- A methodology that furnishes tools for the improvement of business processes. The intent is to decrease process variation and improve product quality.
Lean Six Sigma- A methodology that combines the improvement concepts of lean and six sigma. It uses the seven wastes of lean and the DMAIC process from six sigma, and awards recognition through Judo-style belts.
OBJECTIVES- of six sigma is to provide high customer satisfaction and to achieve low product return rates by systematically reduction variation in all manufacturing and business processes to no more than 3.4 defects per million opportunities.
The 3.4 defects per million number is based on six sigmas (std. deviation) in each direction from the mean is 99.99% of all the opportunities.
The methodology was first developed in 1980s by Motorola Corporation, which developed complex systems which required very low error rates.
It was developed by Bill Smith, a reliability engineer at Motorola.
Initiated by top levels of managements, requires employee involvement and empowerment at all levels.
More evidence based than TQM; organizations need to develop more precise ways of measurement to align with their much higher goals for process improvement.
LEVELS OF TRAINING
1) Master Black Belts- trainers in size sigma and have usually completed large- scale cost- saving projects of over $1,000,000.
2) Black Belts- are project managers who have extensive six-sigma training and usually have managed cost- saving projects of over $100,000.
3) Green Belts- are project managers who have completed six sigma training and may have completed a cost-saving project saving at least $10,000.
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DMAIC- A six sigma improvement process composed of five stages: (1) Determine the nature of the problem. (2) Measure existing performance and commence recording data and facts that offer information about the underlying causes of the problem. (3) Study the information to determine the root causes of the problem. (4) Improve the process by effecting solutions to the problem. (5) Monitor the process until the solutions become ingrained.
Process
1) Define- identifying the customer's problems caused by the variation in output; defining the process and its elements and outputs; defining the improvement goals along with the monetary or other benefits that promote investing in the project.
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