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Six Sigma

Index Six Sigma

Six Sigma (6σ) is a set of techniques and tools for process improvement. [1]

96 relations: Adaptability, American Society for Quality, Analysis of variance, ANOVA gauge R&R, Arithmetic mean, Axiomatic design, Bill Smith (Motorola engineer), Bloomberg Businessweek, Blue skies research, Business process, Business process mapping, Check sheet, Chi-squared test, Common cause and special cause (statistics), Confidence trick, Control chart, Control system, Correlation and dependence, Cost–benefit analysis, Cranfield School of Management, CTQ tree, Culture of Japan, Defects per million opportunities, Design for Six Sigma, Design of experiments, DMAIC, Donald J. Wheeler, Double-loop learning, Empirical evidence, Enterprise feedback management, Ford Motor Company, Fortune (magazine), Fortune 500, General Electric, General linear model, Histogram, Honeywell, Intercultural competence, International Organization for Standardization, Ishikawa diagram, Jack Welch, James McNerney, John Wiley & Sons, Joseph M. Juran, Kaizen, Lean dynamics, Lean manufacturing, Lean Six Sigma, Learning organization, Management fad, ..., Manufacturing, McGraw-Hill Education, Mean, Milwaukee, Motorola, Nassim Nicholas Taleb, New York City, Normal distribution, Pareto analysis, Pareto chart, PDCA, Philip B. Crosby, Pick chart, Poka-yoke, Process capability, Process capability index, Quality function deployment, Quality management, QualPro, Quantitative marketing research, Regression analysis, Reliability engineering, Rolled throughput yield, Root cause analysis, Run chart, S&P 500 Index, San Francisco, Scatter plot, Sigma, SIPOC, Standard deviation, Statistical dispersion, Statistical process control, Statistician, Statistics, Stratified sampling, Taguchi loss function, Taguchi methods, Total productive maintenance, Total quality management, Value stream mapping, W. Edwards Deming, Wharton School of the University of Pennsylvania, Zero Defects, 3M, 5 Whys. Expand index (46 more) »


Adaptability (adaptō "fit to, adjust") is a feature of a system or of a process.

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American Society for Quality

The American Society for Quality (ASQ), formerly the American Society for Quality Control (ASQC), is a knowledge-based global community of quality professionals, with nearly 80,000 members dedicated to promoting and advancing quality tools, principles, and practices in their workplaces and communities.

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Analysis of variance

Analysis of variance (ANOVA) is a collection of statistical models and their associated estimation procedures (such as the "variation" among and between groups) used to analyze the differences among group means in a sample.

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ANOVA gauge R&R

ANOVA gauge repeatability and reproducibility is a measurement systems analysis technique that uses an analysis of variance (ANOVA) random effects model to assess a measurement system.

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Arithmetic mean

In mathematics and statistics, the arithmetic mean (stress on third syllable of "arithmetic"), or simply the mean or average when the context is clear, is the sum of a collection of numbers divided by the number of numbers in the collection.

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Axiomatic design

Axiomatic design is a systems design methodology using matrix methods to systematically analyze the transformation of customer needs into functional requirements, design parameters, and process variables.

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Bill Smith (Motorola engineer)

William B. Smith, Jr. (1929 – 1993) is the "Co-founder of Six Sigma" along with Dr Mikel J Harry.

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Bloomberg Businessweek

Bloomberg Businessweek is an American weekly business magazine published by Bloomberg L.P. Businessweek was founded in 1929.

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Blue skies research

Blue skies research (also called blue sky science) is scientific research in domains where "real-world" applications are not immediately apparent.

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Business process

A business process or business method is a collection of related, structured activities or tasks that in a specific sequence produces a service or product (serves a particular business goal) for a particular customer or customers.

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Business process mapping

Business process mapping refers to activities involved in defining what a business entity does, who is responsible, to what standard a business process should be completed, and how the success of a business process can be determined.

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Check sheet

The check sheet is a form (document) used to collect data in real time at the location where the data is generated.

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Chi-squared test

A chi-squared test, also written as test, is any statistical hypothesis test where the sampling distribution of the test statistic is a chi-squared distribution when the null hypothesis is true.

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Common cause and special cause (statistics)

Common and special causes are the two distinct origins of variation in a process, as defined in the statistical thinking and methods of Walter A. Shewhart and W. Edwards Deming.

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Confidence trick

A confidence trick (synonyms include con, confidence game, confidence scheme, ripoff, scam and stratagem) is an attempt to defraud a person or group after first gaining their confidence, used in the classical sense of trust.

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Control chart

Control charts, also known as Shewhart charts (after Walter A. Shewhart) or process-behavior charts, are a statistical process control tool used to determine if a manufacturing or business process is in a state of control.

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Control system

A control system manages, commands, directs, or regulates the behavior of other devices or systems using control loops.

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Correlation and dependence

In statistics, dependence or association is any statistical relationship, whether causal or not, between two random variables or bivariate data.

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Cost–benefit analysis

Cost–benefit analysis (CBA), sometimes called benefit costs analysis (BCA), is a systematic approach to estimate the strengths and weaknesses of alternatives (for example in transactions, activities, functional business requirements or projects investments); it is used to determine options that provide the best approach to achieve benefits while preserving savings.

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Cranfield School of Management

Cranfield School of Management, established in 1967, is one of the most prestigious business schools in Europe and is constantly ranked among the Top 20 European Business Schools by the Financial Times, Top 15 Best International Business Schools by Bloomberg and Top 10 Best International Business Schools For MBA by Forbes.

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CTQ tree

CTQ trees (critical-to-quality trees) are the key measurable characteristics of a product or process whose performance standards or specification limits must be met in order to satisfy the customer.

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Culture of Japan

The culture of Japan has evolved greatly over the millennia, from the country's prehistoric time Jōmon period, to its contemporary modern culture, which absorbs influences from Asia, Europe, and North America.

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Defects per million opportunities

In process improvement efforts, defects per million opportunities or DPMO (or nonconformities per million opportunities (NPMO)) is a measure of process performance.

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Design for Six Sigma

Design for Six Sigma (DFSS) is a business-process management method related to traditional Six Sigma.

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Design of experiments

The design of experiments (DOE, DOX, or experimental design) is the design of any task that aims to describe or explain the variation of information under conditions that are hypothesized to reflect the variation.

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DMAIC (an acronym for Define, Measure, Analyze, Improve and Control) (pronounced də-MAY-ick) refers to a data-driven improvement cycle used for improving, optimizing and stabilizing business processes and designs.

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Donald J. Wheeler

Donald J. Wheeler is an American author, statistician and expert in quality control.

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Double-loop learning

Double-loop learning entails the modification of goals or decision-making rules in the light of experience.

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Empirical evidence

Empirical evidence, also known as sensory experience, is the information received by means of the senses, particularly by observation and documentation of patterns and behavior through experimentation.

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Enterprise feedback management

Enterprise feedback management (EFM) is a system of processes and software that enables organizations to centrally manage deployment of surveys while dispersing authoring and analysis throughout an organization.

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Ford Motor Company

Ford Motor Company (commonly referred to simply as "Ford") is an American multinational automaker headquartered in Dearborn, Michigan, a suburb of Detroit.

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Fortune (magazine)

Fortune is an American multinational business magazine headquartered in New York City, United States.

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Fortune 500

The Fortune 500 is an annual list compiled and published by Fortune magazine that ranks 500 of the largest United States corporations by total revenue for their respective fiscal years.

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General Electric

General Electric Company (GE) is an American multinational conglomerate incorporated in New York and headquartered in Boston, Massachusetts.

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General linear model

The general linear model or multivariate regression model is a statistical linear model.

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A histogram is an accurate representation of the distribution of numerical data.

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Honeywell International Inc. is an American multinational conglomerate company that produces a variety of commercial and consumer products, engineering services and aerospace systems for a wide variety of customers, from private consumers to major corporations and governments.

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Intercultural competence

U.S. Military Academy Center for Languages, Cultures, and Regional Studies.

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International Organization for Standardization

The International Organization for Standardization (ISO) is an international standard-setting body composed of representatives from various national standards organizations.

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Ishikawa diagram

Ishikawa diagrams (also called fishbone diagrams, herringbone diagrams, cause-and-effect diagrams, or Fishikawa) are causal diagrams created by Kaoru Ishikawa that show the causes of a specific event.

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Jack Welch

John Francis "Jack" Welch Jr. (born November 19, 1935) is an American retired business executive, author, and chemical engineer.

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James McNerney

Walter James "Jim" McNerney Jr. (born August 22, 1949 in Providence, Rhode Island) is a business executive who was chairman of The Boeing Company until March 1, 2016.

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John Wiley & Sons

John Wiley & Sons, Inc., also referred to as Wiley, is a global publishing company that specializes in academic publishing.

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Joseph M. Juran

Joseph Moses Juran (December 24, 1904 – February 28, 2008) was a Romanian-born American engineer and management consultant.

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, is the Japanese word for "improvement".

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Lean dynamics

Lean dynamics is a business management practice that emphasizes the same primary outcome as lean manufacturing or lean production of eliminating wasteful expenditure of resources.

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Lean manufacturing

Lean manufacturing or lean production, often simply "lean", is a systematic method for waste minimization ("Muda") within a manufacturing system without sacrificing productivity.

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Lean Six Sigma

Lean Six Sigma is a methodology that relies on a collaborative team effort to improve performance by systematically removing waste and reducing variation.

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Learning organization

In business management, a learning organization is a company that facilitates the learning of its members and continuously transforms itself.

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Management fad

Management fad is a term used to characterize a change in philosophy or operations implemented by a business or institution.

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Manufacturing is the production of merchandise for use or sale using labour and machines, tools, chemical and biological processing, or formulation.

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McGraw-Hill Education

McGraw-Hill Education (MHE) is a learning science company and one of the "big three" educational publishers that provides customized educational content, software, and services for pre-K through postgraduate education.

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In mathematics, mean has several different definitions depending on the context.

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Milwaukee is the largest city in the state of Wisconsin and the fifth-largest city in the Midwestern United States.

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Motorola, Inc. was an American multinational telecommunications company founded on September 25, 1928, based in Schaumburg, Illinois.

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Nassim Nicholas Taleb

Nassim Nicholas Taleb (نسيم نقولا طالب., alternatively Nessim or Nissim, born 1960) is a Lebanese–American essayist, scholar, statistician, former trader, and risk analyst, whose work focuses on problems of randomness, probability, and uncertainty.

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New York City

The City of New York, often called New York City (NYC) or simply New York, is the most populous city in the United States.

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Normal distribution

In probability theory, the normal (or Gaussian or Gauss or Laplace–Gauss) distribution is a very common continuous probability distribution.

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Pareto analysis

Pareto analysis is a formal technique useful where many possible courses of action are competing for attention.

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Pareto chart

A Pareto chart, named after Vilfredo Pareto, is a type of chart that contains both bars and a line graph, where individual values are represented in descending order by bars, and the cumulative total is represented by the line.

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PDCA (plan–do–check–act or plan–do–check–adjust) is an iterative four-step management method used in business for the control and continual improvement of processes and products.

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Philip B. Crosby

Philip Bayard "Phil" Crosby, (June 18, 1926 – August 18, 2001) was a businessman and author who contributed to management theory and quality management practices.

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Pick chart

A PICK chart is a Lean Six Sigma tool, developed by Lockheed Martin, for organizing process improvement ideas and categorizing them during the Identify and Prioritize Opportunities Phase of a Lean Six Sigma project.

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is a Japanese term that means "mistake-proofing" or "inadvertent error prevention".

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Process capability

A process is a unique combination of tools, materials, methods, and people engaged in producing a measurable output; for example a manufacturing line for machine parts.

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Process capability index

In process improvement efforts, the process capability index or process capability ratio is a statistical measure of process capability: the ability of a process to produce output within specification limits.

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Quality function deployment

Quality function deployment (QFD) is a method developed in Japan beginning in 1966 to help transform the voice of the customer into engineering characteristics for a product.

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Quality management

Quality management ensures that an organization, product or service is consistent.

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QualPro, Inc. is a Knoxville, Tennessee-based management consultancy that uses multivariable testing to simultaneously test a large number of ideas to improve business processes or performance.

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Quantitative marketing research

Quantitative marketing research is the application of quantitative research techniques to the field of marketing.

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Regression analysis

In statistical modeling, regression analysis is a set of statistical processes for estimating the relationships among variables.

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Reliability engineering

Reliability engineering is a sub-discipline of systems engineering that emphasizes dependability in the lifecycle management of a product.

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Rolled throughput yield

Rolled throughput yield (RTY) is the probability that a process with more than one step will produce a defect free unit.

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Root cause analysis

Root cause analysis (RCA) is a method of problem solving used for identifying the root causes of faults or problems.

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Run chart

A run chart, also known as a run-sequence plot is a graph that displays observed data in a time sequence.

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S&P 500 Index

The Standard & Poor's 500, often abbreviated as the S&P 500, or just the S&P, is an American stock market index based on the market capitalizations of 500 large companies having common stock listed on the NYSE or NASDAQ.

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San Francisco

San Francisco (initials SF;, Spanish for 'Saint Francis'), officially the City and County of San Francisco, is the cultural, commercial, and financial center of Northern California.

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Scatter plot

A scatter plot (also called a scatterplot, scatter graph, scatter chart, scattergram, or scatter diagram) is a type of plot or mathematical diagram using Cartesian coordinates to display values for typically two variables for a set of data.

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Sigma (upper-case Σ, lower-case σ, lower-case in word-final position ς; σίγμα) is the eighteenth letter of the Greek alphabet.

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In process improvement, a SIPOC (sometimes COPIS) is a tool that summarizes the inputs and outputs of one or more processes in table form.

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Standard deviation

In statistics, the standard deviation (SD, also represented by the Greek letter sigma σ or the Latin letter s) is a measure that is used to quantify the amount of variation or dispersion of a set of data values.

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Statistical dispersion

In statistics, dispersion (also called variability, scatter, or spread) is the extent to which a distribution is stretched or squeezed.

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Statistical process control

Statistical process control (SPC) is a method of quality control which employs statistical methods to monitor and control a process.

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A statistician is a person who works with theoretical or applied statistics.

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Statistics is a branch of mathematics dealing with the collection, analysis, interpretation, presentation, and organization of data.

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Stratified sampling

In statistics, stratified sampling is a method of sampling from a population.

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Taguchi loss function

The Taguchi loss function is graphical depiction of loss developed by the Japanese business statistician Genichi Taguchi to describe a phenomenon affecting the value of products produced by a company.

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Taguchi methods

Taguchi methods (タグチメソッド) are statistical methods, or sometimes called robust design methods, developed by Genichi Taguchi to improve the quality of manufactured goods, and more recently also applied to engineering, biotechnology, marketing and advertising.

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Total productive maintenance

In industry, total productive maintenance (TPM) is a system of maintaining and improving the integrity of production and quality systems through the machines, equipment, processes, and employees that add business value to an organization.

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Total quality management

Total quality management (TQM) consists of organization-wide efforts to install and make a permanent climate in which an organization continuously improves its ability to deliver high-quality products and services to customers.

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Value stream mapping

Value-stream mapping is a lean-management method for analyzing the current state and designing a future state for the series of events that take a product or service from its beginning through to the customer with reduced lean wastes as compared to current map.

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W. Edwards Deming

William Edwards Deming (October 14, 1900 – December 20, 1993) was an American engineer, statistician, professor, author, lecturer, and management consultant.

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Wharton School of the University of Pennsylvania

The Wharton School of the University of Pennsylvania (also known as The Wharton School or Wharton) is the business school of the University of Pennsylvania, a private Ivy League university in Philadelphia, Pennsylvania.

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Zero Defects

Zero Defects (or ZD) was a management-led program to eliminate defects in industrial production that enjoyed brief popularity in American industry from 1964 to the early 1970s.

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The 3M Company, formerly known as the Minnesota Mining and Manufacturing Company, is an American multinational conglomerate corporation based in Maplewood, Minnesota, a suburb of St. Paul.

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5 Whys

5 Whys is an iterative interrogative technique used to explore the cause-and-effect relationships underlying a particular problem.

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[1] https://en.wikipedia.org/wiki/Six_Sigma

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