Six Sigma DMAIC
Implement a solution to your problem and provide before/after data
What is the improve phase?
Variation that is not always present, but is usually an isolated event
What is special cause variation?
A visual representation of any data that is collected over time
What is a time plot?
Variation that occurs when measuring the same sample between different operators
What is reproducibility?
High level process map with 5-7 steps and includes suppliers and customers
What is a SIPOC?
Define the project purpose and goal, gather background information on the process and customer, and kickoff the project.
What is the define phase?
What is an operational definition?
233 DPMO
What is a 5 sigma process?
Difference between measured value and "true" value
What is accuracy?
Counts, Yes/No, Categories
What are types of discrete data?
Process Map, Measurement Systems Analysis, Baseline metrics
Tools in the measure phase
Collaborative visual tool to develop shared understanding of the current process, swimlane is an example
What is a process flowchart?
Dividing data into groups based on key characteristics.
What is stratification?
Variation that occurs when measuring the same sample under the same conditions (Device variation)
What is repeatability?
Collecting only a portion of the data and using it to draw conclusions
What is sampling?
Variation that is always present to some degree.
What is common cause variation?
Simple Random, Systematic, Stratified and Cluster
What are types of sampling?
What is a data collection plan?
Percent of the tolerance (spec) that is taken by measurement error
What is the P/T ratio?
What is Go to Gemba?
A document utilized to highlight the "story" of the project through each phase
What is a storyboard?
Tool used to prioritize and link process inputs to Voice of Customer
What is the Cause and Effects Matrix?
Sufficient, Relevant, Representative, and Contextual
What are desired characteristics of data?
Less than 30% of total variation
What is the acceptable range for %R&R? (% total variation due to measurement)
Customer Satisfaction model which includes Musts, More is Better and Delighters
What is the Kano Model?