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Six Sigma and Lean Questions with Accurate Answers
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Exam of 8 pages for the course Lean Six Sigma at Lean Six Sigma (Six Sigma and Lean)
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Six Sigma and LeanPerformance Quality
eg (faster, longer life, more functions, price, cost, etc.) - answerthe features defined by
the design Specifications
during product or service creation and development - answerWhen is performance
quality defined?
Conformance quality - answerquality determined by the execution of the specifications
and processes, How well you meet the specifications
100% - answerpercent of time after the product or service is defined that the focus is on
conformance to specification
junk - answerwhat people associated with "Made in Japan" after WWII
W. Edwards Deming and J.M. Juran - answertwo Americans invited to Japan post WWII
to train the Japanese in quality management
highest quality and most competitive - answerdescription of Japanese products after
Deming and Juran worked with them
Western Electric (AT&T) Walter A Shewart in the 20's - answerWhere do Deming and
Juran's roots trace back to (person and company)
1. Everyone in the workplace is responsible for quality
2. Everyone has a direct customer (next person in the supply chain) - answerTotal
Quality management (2 main characteristics)
85% - answerAmount of quality that leadership is responsible for
all equal (Safety is 1st among equals) - answerweights of focus given to Quality, Safety,
Cost and Delivery respectively
provide tools, training, and culture - answerleadership role in Total Quality management
~Be a zero defect producer - Do it right the first time
~Be an inspector- catch defects as they happen
"Walk and Chew Gum at the Same Time" - answerEverybody's role in Total Quality
Management
, Quality circles - answerinvented by Kaoru Ishikawa at Tokyo University: Utilizes teams
of workers to brainstorm, identify quality problems and propose process improvements
to eliminate defects
Quality is Free - answerBook written by Philip Crosby with a simple title expressing that
the cost of quality is made up for by the money saved by a more quality process
conformance to requirements - answerDefinition of Quality according to Crosby's
Absolutes
prevention - answerThe System of Quality according to Crosby's absolutes
Zero Defects - answerThe performance standard according to Crosby's Absolutes
price of non-conformance - answerThe measurement of quality according to Crosby's
absolutes
~Product or Service normally contains significant numbers of defects
~Extensive rework and customer issues
~Leadership does not provide clear performance standard
~Leadership does not know cost of non-conformance
~Leadership denies that it is the cause of the problem - answerProfile of a problem
organization
1. Cost
2. Delivery
3. Quality
4. Safety - answerold hierarchy of company priorities
cost of failure decreases as % good increases, cost of prevention and inspection
increases as % good increases, Total cost of quality is a parabola centered in the
middle of the graph - answergraph of cost per "good" unit vs. % good
International Organization for Standardization 9001:2008 (ISO) - answerA standard for
quality management system that can be certified
99..4 - answer% in spec (yield) at 6 sigma levels of quality / Defects per million
operations *These values have been adjusted for anticipated process shift
Upper specification Limit and Lower specification limit - answerWhat limits are 6 sigma
away from the mean?
3.8 sigma - answerhow many sigma for 99% quality?
10-15% - answerpercent of revenue lost in inefficiencies in a 3 sigma company
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