| 
Tool Name | 
Phase of DMAIC in which tool is most commonly used 
 (Define,
  Measure, Analyze, Improve, Control)  | ||||
| 
D | 
M | 
A | 
I | 
C | |
| 
Affinity Diagram | 
· | 
· | |||
| 
Brainstorming | 
· | 
· | |||
| 
Business case | 
· | ||||
| 
Cause and Effect Diagrams | 
· | ||||
| 
Project Charter | 
· | ||||
| 
Consensus | 
· | ||||
| 
Control Charts 
For continuous Data 
Individuals 
X-Bar, R 
EWMA 
For discrete data 
P,nP 
C,U    | 
· | 
· | 
· | 
· | |
| 
CTQ (Critical To Quality)
  Tree | 
· | ||||
| 
Data Collection Forms 
Check Sheet 
Frequency Plot Check Sheet 
Confirmation Check Sheet 
Concentration Diagram | 
· | 
· | 
· | 
· | |
| 
Data Collection Plan | 
· | 
· | 
· | 
· | |
| 
Design Of Experiments 
Full Factorial 
Reduced Fractions 
Screening Designs 
Plackett-Burnham Designs 
More than Two Levels  | 
· | 
· | |||
| 
Flow Diagrams  | 
· | 
· | 
· | 
· | 
· | 
| 
Frequency Plots | 
· | 
· | 
· | 
· | |
| 
FMEA
  (Failure Mode And Effect Analysis) | 
· | 
· | |||
| 
Gage R&R | 
· | ||||
| 
Hypothesis Tests 
T-Test 
Paired t-test 
ANOVA 
Chi Square | 
· | ||||
| 
· | |||||
| 
Planning Tools 
Gantt Charts 
Planning Grid | 
· | ||||
| 
Pareto Charts | 
· | 
· | 
· | ||
| 
Prioritization Matrix | 
· | 
· | |||
| 
Process Capability  | 
· | 
· | |||
| 
Process Sigma | 
· | 
· | |||
| 
Quality Control Process
  Chart | 
· | ||||
| 
Regression  | 
· | ||||
| 
Rolled Throughput Yield (RTY)
   | 
· | ||||
| 
Sampling | 
· | 
· | 
· | 
· | |
| 
Scatter Plots | 
· | ||||
| 
SIPOC | 
· | ||||
| 
Stakeholder Analysis  | 
· | 
· | |||
| 
Standardization  | 
· | ||||
| 
Stratification  | 
· | 
· | 
· | 
· | |
| 
Stratified Frequency Plots  | 
· | ||||
| 
Times Series Plot (Run
  Charts) | 
· | ||||
| 
VOC (Voice Of Customer)
   | 
· | ||||
  Background   In this case study, we are a compressor manufacturer in the process of developing a new type of compressor. Our project team was charged with developing the design for the compressor using Design for Six Sigma (DFSS) tools and techniques. As we worked through the DMA DV (Define, Measure, Analyze, Design, Verify) process, we used simulation and optimization to provide project justification, lend insight into the critical drivers of quality, and help create a cost effective design th at meets customer requirements.   For DFSS, critical benefits of simulation and optimization are  the ability to prototype new products or processes without an appreciable investment of time or money, minimal defects, and sales driven through improved customer satisfaction.    Define    The first step in our Six Sigma process was to estimate the financial impact of this project. We started by developing a simple spreadsheet model (DFSS Case Study Defin e.xls) in Microsoft ® Excel to take into ...
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