Quality
Name 3 different dimensions of quality
Performance
Reliability
Durability
Serviceability
Aesthetics
Features
Perceived quality
Conformance to standards
In service and transactional business orgs we add:
What is the purpose of lean?
Reduce waste and add value
Green and black belt
What is Crosby known for?
Quality of Conformance
What is Little's Law?
What is considered quality?
Reduction of variability in process or product
What is the acronym for seven wastes?
TIM WOODS or DOWNTIME
What is Motorola's impact on Six Sigma?
Helped standardize the amount of defects allowed in a manufacturing plant
What is Whitney for?
Interchangeable Parts
What is Takt Time Equation?
Production Time Divided by Demand
What is craft production?
Craft production is manufacturing done by hand
What 3 Japanese disciplines are used in lean?
Muda, Muri and Mura
What does DMAIC stand for?
Measure Performance
Analyze Causes of Problems
Improve Processes
Control Processes
What is Ohno known for? (2 Things)
Father of Lean and Father of Toyota Production System
What is Type I Error equal to?
Type I Error is equal to Alpha
n is sample size
c is acceptance number
How can lean help a factory?
Why is control charts helpful?
Useful in separating common cause variability from assignable cause variability
What is Shewhart known for?
First developed control charts
1-Beta or 1 - Type II Error
What is LSL and USL?
Lower specification limit and upper specification limit for a quality characteristic.
What is considered the lean way of thinking about the revenue equation?
Sales price = revenue + cost of production
What is pareto analysis?
Consists of identifying quality costs by category or by product or type of defect of nonconformity
What is Gilbreth known for?
Motion and Time Studies
If a problem has a confidence interval of 95% or an alpha of 0.05, what is the z score associated with a two tailed test?
1.96 or -1.96