Define Process
Catapult Process
Your Catapult Team
Do the following:
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Read the information about your company
List Suppliers, Inputs, Outputs, and Customers
Determine your customer’s requirements
Get comfortable using the Catapult
Flow chart your process
Discuss standardization issues for your process
Be creative
Statistical
Page 1
Define Process
Catapult Process
Define Process
Company Name:
Discussion Notes:
Statistical
Page 2
Define Process
Catapult Process
Process Map
Use Excel Template
Statistical
Page 3
Define Process
Catapult Process
Standardization
What should be standardized in your process, and how?
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Statistical
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Select Measures
Catapult Process
Process Measures
List possible in-process, final product, and customer
satisfaction measures for the process. Use information
from your process map.
Process
___________
Output
Customer
___________
Gauge
In-Process
Statistical
Gauge
Final Product
Gauge
Customer
Satisfaction
Page 5
Collect & Interpret Data
Catapult Process
Data Collection & Interpretation
Using 2-shooters and aiming for the target defined in
your company description, make 30 deliveries using
the Catapult. Please designate the shooter in your data
file. (Enter your data in Minitab, Save the data-we will
use it later in the workshop)
 Plot the 30 distances (in inches) on the following run
chart (Make your plot with Minitab)
 Plot each observation on the histogram (following
page) as they occur. (Make your plot with Minitab)
 Copy & paste output into PowerPoint

Run Chart
Distance
(inches)
1
2
3
4
5
6
7
8
9
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
25 26 27 28 29 30
Run Order
Statistical
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Collect & Interpret Data
Catapult Process
Catapult Histogram
Histogram
Frequency
7
6
5
4
3
2
1
0
Distance (inches)
Statistical
Page 7
Collect & Interpret Data
Catapult Process
Variability Diagnosis
Your team should do the following for the delivery
process.
 Review your process map.
 Discuss the quality measure(s) you have selected.
 Construct a cause-effect matrix of what causes
variation in your primary quality measure(s).
 Use the Excel template for the C&E Matrix
9
10
4
8
8
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
9
Process Step
Process Input
Mixing
Mixing
Mixing
Mixing
Mixing
Mixing
Mixing
Mixing
Mixing
Total Rate
Mixer Speed
Al2O3 Quality
Recycle Composition
Recycle Rate
Nitric Acid
Water Temperature
Water Flow
Recycle Water Rate
Statistical
0
0
1
1
1
0
0
0
0
3
1
9
1
1
9
1
9
3
0
1
9
1
1
9
1
9
3
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
3
3
0
0
0
1
Dust/Fines
Content
% Moly & %
Nickel
4
Moly
Distribution in
Pellett (within
& between)
8
Catalyst
Performance
8
Plugging
Cycle Time
Length
Distribution
Porosity
Distribution
Color
Rating of Importance to Customer
0
0
3
0
3
0
0
0
0
0
0
0
9
9
0
0
0
1
Total
24
12
140
104
138
108
12
108
48
Page 8
Is
Process
Stable
?
Catapult Process
Individuals Charts
Your team should do the following for the delivery
process.
 Use Minitab to create Individuals Charts (Individual
and Moving Range) from the data you collected.
 Do you need to range edit your data to establish
appropriate control limits?
 If so, why?
 If so, re-calculate limits.
 Is your process stable?
 If not, what rules is your process violating?
 Do you know why there are instabilities?
 Save your control limits to your Minitab worksheet.
 Copy/Past your control charts into PowerPoint
Statistical
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Investigate & Fix
Special Causes
Catapult Process
Special Cause Action Plan
Use Process knowledge, C&E and FMEA to
help develop a S.C.A.P for your catapult
process.
Be prepared to show your FMEA and S.C.A.P.
Statistical
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Is
Process
Capable
?
Catapult Process
Capability Analysis
Using Minitab and the data you already collected,
calculate Cp, Cpk, Pp and Ppk.
The following information is provided for each of
the scenarios:
Stunts R Us – Target=125
Spec Range=(100 to 150)
Loft em Soft - Target=140
Spec Range=(130 to 150)
Ace in the Hole – Target=110
Spec Range (105 to 115)
Collect 15 more data points from your catapult
process. Have two people independently write
down the distances. Provide the Excel sheet to
your instructor to calculate sigma test. With sigma
test, calculate percent test, gauge R&R and P/T
ratio.
Be prepared to present your results.
Statistical
Page 11
Improve Process Capability
Catapult Process
Improve Process Capability
Use the Intervals to determine if there is a
difference between shooters in your catapult
team data.
Collect 30 data points at varying levels of all
the catapult factors. How do the factors
relate to distance? Use Minitab to determine
the relationships between the inputs and
outputs.
Be ready to present your results.
Statistical
Page 12
Control Plan Documentation
Catapult Process
Control Plans
Develop a control plan for your catapult
process.
Fill out the Control Plan Excel sheet as
much as possible.
Be ready to present your control plan.
Statistical
Page 13