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Lean Six Sigma Glossary - GoLeanSixSigma.com

Business Case

A Business Case is a broad statement that helps sell or justify a specific improvement opportunity to the senior leadership or stakeholders in an organization. This is generally part of a Lean Six Sigma Project Charter. A Business Case defines how the customer is negatively impacted, how long they’ve been…

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Lean Six Sigma Glossary - GoLeanSixSigma.com

Brainstorming

Brainstorming is a free-thinking group method for generating ideas to handle a challenging situation. An underlying maxim for Brainstorming is "from quantity comes quality." The primary objective of Brainstorming is to encourage innovation and out-of-the-box thinking. To achieve this goal, the Brainstorming session is performed with no editing: analysis, discussion,…

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Box Plot - GoLeanSixSigma.com

Box Plot (aka Box and Whisker Plot)

A Box Plot, or Box and Whisker Plot, is a graphical view of a data set that is divided into fourths or “quartiles.” It shows the center and spread of a data set but is most useful when comparing two or more “strata” or data sets such as the cycle…

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Baseline Measure - GoLeanSixSigma.com

Baseline Measure

A Baseline Measure results from data collected to establish the initial capability of a process to meet customer expectations. By collecting a baseline prior to making any changes to the process it is possible to determine if solutions implemented later on have the desired impact. For a better understanding of…

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Lean Six Sigma Glossary - GoLeanSixSigma.com

Attribute Data (aka Discrete Data)

Attribute data refers to categories or counts that can only be described in whole numbers; i.e. you can’t have half a defect or half a customer. This type of data is the opposite of continuous or variable data (temperature, weight, distance, etc.). Typical Attribute Data refers to the number of…

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Lean Six Sigma Glossary - GoLeanSixSigma.com

Assumption Busting

Assumption Busting is a brainstorming and questioning technique that does two things: Identifies and challenges conventional assumptions Eliminates them if they are obstacles to optimal solutions For a better understanding of Assumption Busting and an overview of Lean Six Sigma, check out our Free Lean Six Sigma Yellow Belt Training, Green…

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Lean Six Sigma Glossary - GoLeanSixSigma.com

Analyze Phase

The Analyze Phase is the third phase of the DMAIC process, and focuses on identifying the root cause (or causes) of a process problem. The Analyze Phase requires data and knowledge gleaned from the previous Define and Measure phases of DMAIC. This phase focuses on analysis of the data and…

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Lean Six Sigma Glossary - GoLeanSixSigma.com

Alternative Path

Used in process mapping, the Alternative Path method shows multiple ways of achieving the same result. Ideal for the mapping of very large and detailed processes, alternative paths are a process analysis tool. This is often done by assigning percentages to each path (e.g, time/incidents) for comparison purposes. For a…

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Lean Six Sigma Glossary - GoLeanSixSigma.com

Affinity Chart (aka Affinity Diagram)

An Affinity Chart (or Affinity Diagram) organizes a large amount of data according to their natural relationships. Useful for bringing order out of chaos, Affinity Charts make complex processes & procedures easier to grasp by 1) breaking them down into their constituent parts and 2) reorganizing them into groups based…

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