OPEDIA

The 2-Proportions Test is a test to check whether samples taken from two different conditions are different regarding their proportion. It compares whether the different proportions in two(...) Read More

5 x Why (5W) is a questioning technique for identifying the root cause of a problem. (Also view: Root Cause Analysis, Problem Solving). Purpose: To avoid being satisfied with a(...) Read More

5S is a Lean tool for organizing one’s workplace with the intention of improving work efficiency and performance by demanding a clean, tidy, and perfectly organized workplace where everything(...) Read More

An Activity Flowchart is a process map that does not just show actions, but also decisions and feedback loops. It is a great tool to show the process complexity, to visualize how a process(...) Read More

Actual Output = Target Output - Speed Losses Speed Losses can be caused by - reduced performance due to increasing quality issues of process product - operators not aware(...) Read More

An affinity diagram is a tool that is used to group ideas for a better overview after a brainstorming session. Step-by-step approach: Transfer data onto cards or post-it notesGroup the(...) Read More

To implement complex changes, an iterative, agile implementation approach is more effective than traditional project management of “planning & execution”: Iterating requires to first define(...) Read More

ANOVA is a hypothesis test to check whether the average differences between groups are significant or only due to random chance. It works when the Y variable is continuous and the X variable is(...) Read More

This third phase of the DMAIC Project is all about analyzing the root causes of the problem. The deliverables of the Analyze phase are straight forward: Have you verified the root causes and(...) Read More

Costs that occur because of the need to control products and services to ensure a high quality level in all stages, conformance to quality standards, and performance requirements. E.g. costs(...) Read More

The arithmetic mean (or average) is a measure of central tendency. It is calculated as the sum of numbers divided by how many numbers are being averaged. Read also: Median,(...) Read More

The Attribute Agreement Analysis is a Gage R&R Study for discrete data. Step-by-step approach: Take parts representative of the process (usually 30 parts). These parts must contain good(...) Read More

The bar chart is used to show frequencies of different categories. This allows comparisons across the different categories. A bar chart can be used to visualize cause-effect relationships(...) Read More

The Bartlett-Test is a test for equal variances comparing the variations of more than two groups when the distributions are normal (X in more than two groups). Read also: F-Test,(...) Read More

Basic Process Mapping means writing each relevant step on a sticky note and putting it to the wall.Start by asking the Team "What is the start of the process?" and continue asking for the next(...) Read More

Black Belts are experts and leaders for process improvement that master the advanced Lean Six Sigma Toolbox. They know how to set-up effective teams, how to select projects that reflect(...) Read More

The Black Belt Bridge Course is a Training to bring certified Green Belts to the level of a certified Black Belt. Read also: Green Belt, Black Belt, Master Black Belt Do you want to(...) Read More

A bias in a measurement system is an offset between the measurement and the master/reference value. The bias of the measurement system can be corrected with calibration.   Read More

Black Belts are experts and leaders for process improvement that master the advanced Lean Six Sigma Toolbox. They know how to set-up effective teams, how to select projects that reflect(...) Read More

The Black Belt Bridge Course is a Training to bring certified Green Belts to the level of a certified Black Belt. Read also: Green Belt, Black Belt, Master Black Belt Do you want to(...) Read More

It might start as a dream, but what distinguishes a dream from a vision is the detail of the vision in action, something people can see or envision themselves doing. A Blue Sky Vision(...) Read More

BOB & WOW is a basic process analysis tool which stands for "Best of the Best" & "Worst of the Worst"aims to find potential variables by contrasting BOB and WOWallows finding which(...) Read More