Measurement Systems Analysis
What is the purpose of the measurement system analysis (MSA)?
Evaluates if measurement variation is too great.
What are 2 things needed to calculate process capability?
Voice of Customer (VOC) and Voice of Process (VOP).
In what 2 phases of the DMAIC process would staffing be calculated?
Measure and Improve.
What is accuracy?
Difference between observed average value of measurements and true value.
Which team, Team Awesome or Team Expense Management, had the least amount of defects in the catapult activity?
TEAM AWESOME!
What are 3 of the most common steps that can measure variation? (There are many)
Reading handwriting
Typing data into a spreadsheet
Downloading data from one database to another
Running a query
Cutting and pasting data
Sorting/Filtering data
Manual timings
A lack of understanding of the process beginning/end
Manual counts of items
What do specification limits (LSL and USL) represent?
Voice of the Customer (VOC)
What is shrinkage?
Percent of available time spent on nonproductive activities.
What is precision?
The spread of measured values when measuring one object.
Who should be included in your kickoff meeting?
Mentor, sponsor, team members, and stakeholders.
What primary source of process variation is frequently overlooked?
Measurement Variation.
What are Defects vs Defectives?
Defects- When a section, field, component, or a step is evaluated individually to determine if it is correct or defective.
Defective- When the end deliverable or output, in its entirety, is considered correct or defective.
What are the 4 components of staffing calculation?
Cycle Time, Available Time, Amount of Work, Shrinkage
What was lacking from the blue shirt activity that was later applied in the M&M activity?
Operational definitions.
What chart type was used in the catapult experiment and was also mentioned in the greenbelt Q&A?
Pareto.
What does high resolution help detect?
Small changes.
In reviewing process performance, what happens if the mean shifts from the center? (Think of the VOP graph)
More defects are created.
How do you calculate minimum staffing?
Minimum Staffing= Cycle Time X Amount of Work/Available time
Referring to precision, what does R&R mean? (Hint: not rest and relaxation)
Repeatability and reproducibility.
What should you always do with data? (Hint: has been discussed on numerous days)
Trust but validate.
What are the two parts of total variation?
Process variation and measurement variation.
Defect Rate= (Total defects/(Total units X Opportunities per unit)) x 100
How do you calculate actual staffing?
Actual Staffing= Minimum Staffing/1-Shrinkage
Variable is 1 type of Gage R&R. What is the other type? (Hint: M&M Activity)
Attribute Gage R&R.
According the the greenbelts, you need to be comfortable with being ____?
Uncomfortable