Anything From Any Week
Process Capability
MSA Basics
Attribute Measurement Systems
Variable Measurement Systems
Lean from Week 2
100
From a lean perspective, a task/activity is considered value added ONLY if it meets ALL THREE of these requirements.
What are:
1. Change the product or service
2. The customer is aware of and willing to pay for that activity (because they perceive the value in it)
3. It is done right the first time (customers do NOT want to pay for us to fix our mistakes)
100
Process Capability is the comparison of Voice of the _______ to Voice of the ________.
What is Voice of the Customer to Voice of the Process?
100
For a Variable MSA, you only have 2 operators and 3 parts (samples). This is the MINIMUM number of trials you should use in the study. (hint: you have to look this one up)
What is 4 trials?
(From Variable MSA module, slide 34 , Operators x Parts = 6, therefore Number of trials = 4)
100
Below is a screen shot of the 3 Attribute MSAs SigmaXL will perform. Provide an example of when each would be used.
Answers will vary.
100
The 5 things to evaluate MSA control chart for are these.
What are:
1. Stability
2. Discrimination
3. Repeatability
4. Reproducibility
5. Part vs. Measurement
100
The difference between internal and external setup activities.
What is: Internal activities have to be done while the machine/process is NOT running; External activities can take place while the machine (process) is still running the previous job?
200
The 5 principles of Lean.
What are:
1. Specify and focus on customer value
2. Identify the value stream
3. Allow value to flow without interruptions
4. Let the customer pull value
5. Continuously pursue perfection
200
The difference between Cp and Cpk.
What is: Cp is potential capability IF the process were to be centered in the specifications, where Cpk is the actual process capability taking into account where the process is centered.
200
The difference between a measurement of an item and the correct/true measurement is called this.
What is accuracy?
200
This is the "statistic" that should be looked at when analyzing a "pass/fail" MSA.
Also, this is the value for that statistic BELOW which the MSA is considered bad and requires improving.
What is Kappa?
What is below 0.7?
200
These two things are primarily why we look at the MSA control charts BEFORE looking at the statistical results.
What are Stability and Discrimination (or resolution)? If either have problems the statistical results may be inaccurate.
200
The two types of mistake proofing.
Also, the one considered best.
What are prevention and warning (or detection)?
What is preventing the cause of the error to prevent the defect?
300
Of all of the TIMWOODS Wastes, this is generally considered to be the worst.
What is Overproduction because it then creates INVENTORY, which results in more WAITING (Little's Law), and over time they expire or become lost/damaged/scrapped (DEFECTS).
300
List 3 things you should do before a variable/ continuous data process capability study.
What are a MSA, Normality check, stability check
300
The difference in measurements taken by the same person measuring the same item is called this.
Also, this is the OTHER R in Gage R&R.
What is repeatability?
The OTHER R is Reproducibility, where different people get, on average, the same answer when measuring the same item.
300
This is the "statistic" that should be looked at when analyzing an Ordinal MSA.
Also, this is the value for that statistic BELOW which the MSA is considered bad and requires improving.
What is Kendall's Coefficient?
Also, what is below 0.07?
300
The maximum amount Gage R&R % TV can be before a Measurement system is deemed bad.
Also the maximum amount Gage R&R % Contribution of Variance Components can be before the measurement system is deemed bad
What is Gage R&R % TV greater than 30%?
What is Gage R&R % Contribution greater than 9%?
300
What are the three types of Buffers in a strategic inventory buffer for Replenishment Pull systems (Supermarket)?
Replenishment , Service, and Murphy
400
The definition of Takt time.
What is, the necessary production rate that will allow a process to meet its customer demand (not more, and not less)
400
This is the difference between Cpk and Ppk.
What is: Cpk is based on short term variation where Ppk is based on overall variation.
400
For MSA control charts, this chart (and ONLY this chart) is used to assess stability.
What is the Range Chart (NOT the Xbar chart)?
400
Give at least 2 ways can you improve an incapable attribute measurement system?
Establish clear operational definitions, use of a standard/ visual aids, train operators to definitions and use of visuals
400
One set of MSA Control charts below shows a good measurement system and one shows a bad measurement system. This is the bad measurement system.
What is B (for Bad)
400
This is what Kanban means (generally speaking)
Also, list at least 3 types of kanbans.
What is a signal to do work (make something, move something, replenish something)?
What are cards, bins, lights, empty spots on supermarket racks, etc)
500
List the 3 statistics that measure the variation of a dataset.
What are range, standard deviation, and variance
500
For the Capability Analysis below, this should be reported out as the baseline capability.
What is Expected Overall Performance of either:
1. PPM Total (310,698) or
2. % Total (31.07%) or
3. Ppk (0.20)
4. Any or all of the above?
500
This drives the width of the control limits on an MSA Xbar Chart
What is the average range from the Range Chart (which for an MSA is driven by REPEATABILITY VARIATION)
500
Final Jeopardy 2: Open Excel File Jeopardy and make worksheet WARRANTY active. The MSA was run to determine if, given different scenarios, people could select the correct category in the QAF system before any changes to the system are made. Analyze the MSA and determine the following:
1. Is it a good measurement system?
2. If not, what is the primary issue of the INITIAL analysis?
What is "no" and accuracy?
500
Final Jeopardy 1: Open Excel File Jeopardy. Make worksheet LEAK CHECK active. The data is from a Leak Check MSA run by the Longview team. Analyze the MSA and determine the following:
1. Is it a good measurement system?
2. If not, what is the primary issue of the INITIAL analysis?
What is "no" and stability (Initial analysis)
What is "no" and repeatability (second analysis excluding outlier)
500
This metric measures the state of the "Six Big Losses" in Total Productive Maintenance.
Also, these are the 3 components involved in the calculation of this metric.
What is Overall Equipment Effectiveness?
What are:
1. Availability
2. Performance Efficiency
3. Quality