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Selecting a Six Sigma glossary term will take you to a topic page that contains a cluster of related terms, arranged in alphabetical order. If you can't find what you want, contact us . If the term is relevant to Six Sigma we will add it as soon as we can, and let you know.
[SIX SIGMA GLOSSARY INDEX OF TOPICS]
Six Sigma Glossary Alphabetical Index
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Numbers

5S
5 Whys

A
Acceptable Quality Level
Accuracy
Activity Network Diagrams
Affinity Diagrams
Alias
Alpha Value
Alternative Hypothesis: see Hypothesis Testing
Analysis of Variance
Analytical Statistics
Andon
ANOVA: see Analysis of Variance
AQL: see Acceptable Quality Level
ARL: See Average Run Length
Assignable Cause Variation: see Special Cause Variation
Attribute Agreement Analysis
Attribute Data
Augmented Lattice Designs
Average: see Mean
Average Run Length

B
Balanced Design
Balanced Scorecard
Bayes Theorem
Benchmarking
Beta Risk
Bias
Big Y
Bimodal Distribution
Binary Data: see Attribute Data
Binomial Distribution
Bivariate Probability Distribution
Black Belt
Blocking
Box and Whisker Plots
Box-Behnken Design
Box Cox Transformation
Box Plot: see Box and Whisker Plots
Brainstorming

C

c chart
Calibration
Calibration Standard
Calipers
Capability Ratio
Categorical Data
Cause and Effect Diagram
CCD: See Central Composite Design
cdf: see Cumulative Distribution Function
CE Diagram: see Cause and Effect Diagram
Central Composite Design
Central Limit Theorem
Central Tendency
Champion
Change Agent
Charter: see Project Charter
Check Sheet
Chi Square Test
Chi-Square Distribution
Coded Factors
Coefficient of Correlation
Coefficient of Determination
Cohen's Kappa
Common Cause Variation
Comparing Proportions
Complementary Probability
Completely Randomized Design
Confidence Interval
Confounding
Consensus Criteria Method: See Prioritization Matrices
Consumerís Risk
Contingency Table
Continuous Data
Continuous Distribution
Control Charts
Control Chart for Given Values: see Given Value Charts
Control Plan
Convenience Sampling
COPQ: see Cost of Quality
COQ (Cost of Quality)
Correlation
Cost of Poor Quality: see Cost of Quality
Cp
Cpk
Cpm
CPM: see PERT
Critical to Quality: see CTx
CTC: see CTx
CTD: see CTx
CTP: see CTx
CTQ: see CTx
CTQ Flowdown
CTx
Cumulative Distribution Function (cdf)
CuSum Chart
CuSum V Mask
Cycle Time
Cyclical Variation

D

Decision Tree
Defects per Million Opportunities: see DPMO
Defects per Unit: see DPU
Defining Relationship
Degrees of Freedom
Demerits per Unit Charts
Deming W. Edwards
Deming 14 points
Dependent Variables
Descriptive Statistics: see Analytical Statistics
Design for Six Sigma
Design for X
Design Generator
Design of Experiments
DFMEA
Design Resolution
DFSS: see Design for Six Sigma
Discrete Data
Discrete Distribution
Discriminant Analysis
Dispersion
DMADOV: see DMADV
DMADV
DMAIC
Double Sided Test: See Single Sided Test
DPMO
DPU

E

Efficiency of Estimators
Enumerative Statistics: See Analytical Statistics
EVOP
Exponentially Weighted Moving Average Control Charts: see EWMA Control Charts
EWMA Control Charts
Experimental Design: see Design of Experiments
Exponential Distribution
Extreme Vertex Designs

F

Factor (Experimental Design)
Factor Analysis
Factorial Designs
Failure Mode and Effects Analysis: see FMEA
Fault Tree Analysis
F Distribution
F Test
First Pass Yield
Fishbone Diagram: see Cause & Effect Diagram
Fixed Effects Model
Flow Charts
FMEA
Foldover Design
Force Field Analysis
FPY: see First Pass Yield
Fractional Factorial Design
Frequency Distribution
Friedman's Test
Full Factorial Designs

G
Gage R & R
Gantt Chart
Gap Analysis
Gauge Blocks
Gaussian Distribution: see Normal Distribution
General Cause Variation: see Common Cause Variation
Given Value Charts
Green Belt

H

H0 See Hypothesis Testing
H1 See Hypothesis Testing
Hill Climbing
Histograms
House of Quality: see Quality Function Deployment
Hypergeometric Distribution
Hypothesis Test for Means
Hypothesis Test for Proportions
Hypothesis Test for Variances (See F Test)
Hypothesis Testing

I

IMR Control Charts: see XmR Charts
In-Control
Independence
Independent Variables: see Dependent Variables
Individual & Moving Range Chart: see XmR Chart
Inferential Statistics: see Analytical Statistics
Inner Array (Taguchi Designs)
Interaction
Interest Based Bargaining
Internal Customer
Interrelationship Diagram
Intersection
Interval Scale
Ishikawa Kaoru
Ishikawa Diagram: see Cause & Effect diagram
ISO9000

J

Juran Joseph

K

Kaizen
Kaizen Blitz
Kanban
Kano Model (Kano Diagram)
KPI
Kruskal Wallis Test
Kurtosis

L

Latin Square Design
Lattice Design
Lean Production
Lean Six Sigma
Least Square
Leveneís Test
Limiting Quality Level
Linear Graphs
Linear Regression
Linearity
Little y: see Big Y
Logistics Regression
Logit Function
Lognormal Distribution
Long-term Capability
Loss Function
LQL: see Limiting Quality Level
L Simplex Designs
LTPD: see Limiting Quality Level

M
Main Effect
Management Strategies
Mann-Whitney Test
MANOVA
Master Black Belt
Matrix Diagrams
Mean
Mean Square Deviation:see Variance
Mean Square Error: see Variance
Measurement Error
Measurement Methods
Measurement Scales and Data Types
Measurement Systems Analysis
Measurement Systems Capability
Measurement Systems Variation: see Measurement Error
Median
Median control chart
Median Test: see Mood's Median Test
Micrometers
Mixture Designs
Mode
Moodís Median Test
Moving Average
Moving Average Control Chart
MSA: see Measurement System Analysis
MUDA
Multiple Analysis of Variance: see MANOVA
Multiple Linear Regression
Multiplication Rule (Probability)
Multivariate Analysis
Multi-Vari Charts
Multivoting
Mutually Exclusive

N
Natural Process Limits
NDC: see Number of Distinct Categories
Nominal Group Technique
Nominal Scale
Nonparametric Test
Normal Distribution
Normal Probability Plot
np chart
NPV
Null Hypothesis: see Hypothesis Testing
Number of Distinct Categories

O
Operating Characteristic Curve: see OC Curve
OC Curve
One Way ANOVA
One Sample t-test
One Sided test: see Single Sided Test
Ordinal Scale
Optical Comparators
Orthogonal Design
Outer Array: see Inner Array (Taguchi Designs)

P
paired t-test
p chart
Parameter
Parametric Hypothesis Test
Pareto Chart
Pareto Principle
pdf
PDSA: see Plan Do Study Act
Pearson's Correlation Coefficient
Percent Agreement
PERT
PEST Analysis
PFMEA
Plackett-Burman Design
Plan Do Check Act: see Plan Do Study Act
Plan Do Study Act
Poisson Distribution
Poka Yoke
Population
Porter's Five Forces Analysis
Positional Variation
Power of a Test
Pp
Ppk: see Pp
Practical Significance: see Statistical vs Practical Significance
Precision
Precision/Tolerance Ratio
Precision/Total Variation Ratio
PRE-Control
Prediction Interval
Principal Components Analysis: see Factor Analysis
Prioritization Matrices
Probability
Probability Distribution Function: see pdf
Probit Regression Function
Procedures
Process
Process Capability: see Cp
Process Decision Program Charts
Process Map
Process Performance Index: see Pp
Process Owner
Producerís Risk
Project Charter
Project Sponsor
Proportions against a specified value
P/T Ratio: see Precision/Tolerance Ratio
P/TV Ratio: see Precision/Total Variation Ratio
Pugh Analysis
Pull Production System
p-value

Q

QFD: see Quality Function Deployment
Quality Function Deployment
QS9000

R
R: see Pearson's Correlation Coefficient
Random Effects Model
Random Sampling
Randomization
Randomized Block Design
Range
Range Method
Ratio Measurement Scale
Rational Subgroups
Reference Standard: see Calibration Standard
Regression Analysis
Regression Equation
Repeatability: see Repeatability and Reproducibility
Repeatability and Reproducibility
Repetition: see Replication
Replication
Reproducibility: see Repeatability and Reproducibility
Residual Analysis
Resolution of a Design: see Design Resolution
Resolution of a Measurement System
Response Surface Methods
Response Variable
Risk Priority Number: See FMEA
RMSE
Robust Design
ROI
Rolled Throughput Yield: see RTY
Root Cause Analysis
Rotatable
RPN: see FMEA
RTY
Run Charts

S

Sample Homogeneity
Sample Size, determining
Sample Size for a Population Proportion
Sample Size with Confidence Interval
Sample Size with Hypothesis Tests
Sampling Plans
Scatter Plot
Scenario Planning
Screening Design
Seven Quality Tools
Shewhart Walter
Shewhart Control Charts
Short Run SPC
Short-Term Capability: see Long Term Capability
Sigma
Sigma Level
Sign Scores Test: see Mood's Median Test
Signal to Noise Ratio
Significance Level: see Alpha Value
Simplex Centroid Design
Single Factor Experiment: see One Way ANOVA
Single Sided Test
SIPOC
Six Sigma
Spaghetti Diagram
SPC: see Statistical Process Control
Special Cause: see Common Cause
Specification Limits
Stability
Standard Deviation
Standard Error
Standard Work
Statistic
Statistical Process Control
Statistical vs Practical Significance
Steepest Ascent/Descent: see Hill Climbing
Stem & Leaf Plots
Storyboard
Stratified Sampling
Strengths, Weaknesses, Opportunities & Threats: see SWOT Analysis
Student t Distribution: see t distribution
Sum of Squares
SWOT Analysis
Systematic Sampling
Systems

T

Tabular Cusum Chart
Taguchi Genichi
Taguchi Arrays
Taguchi Design
Taguchi Loss Function
Takt Time
Team Tools
Temporal Variation
Tensile Testing
Theory of Constraints
Throughput
Titration
Tolerance Limits: see Specification Limits
Tollgate Review
Total Productive Maintenance
Touch Time
TPM: see Total Productive Maintenance
Transformations
Treatment
TS16949: see QS9000
t distribution
TRIZ
t-test
Two sample t-test
Two sample z-test
Two Sided Test: see Single Sided Test
Two Way Analysis of Variance: see Two Way ANOVA
Two Way ANOVA
Type I and Type II Errors
Type II Error: see Type I and Type II Errors

U
u chart
U Chart: see Demerits Per Units Chart
Unimodal Distributions
Union

V
Value Stream Maps
Variance
Variation : see Common Cause and Special cause Variation
Venn Diagram
Visual Factory

W
Weibull Distribution
Weibull Probability Plot
Weighted Moving Average
Western Electric Rules
Wilcoxon Rank Sum Test: see Mann Whitney Test
Wilcoxon Signed Rank Test
Work in Progress
Work in Queue
Work Instruction

X
x-bar & R Control Chart
x-bar and s Control Chart
XmR Chart

Y
Yield: see Rolled Throughput Yield

Z
z test

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