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Tests whether or not two samples that had been drawn from different populations have the same standard deviation, with specified confidence level. Samples may be of different sizes.

A factor is an independent variable; an X.

A structured technique used to identify and assess risks, or the seriousness of potential failures, in a process or a product's design.

A tool/diagram used in value analysis and value engineering projects.

The Fenwick-vanKoesveld test typically refers to the practice of asking, three times, who caused the failure which has occurred in order to get to the originator of the problem. There cannot be more than one originator to a problem. In an organizational context, generally Originator Analysis is carried out by a team not related to the originator. No special technique is required.

FIFO Lanes are used when it is not practical to store or place in a storage device like a shelf between processes. Some reasons may be; low volume, weight, fragility, or short decay time.

Used to measure the gains of a project. Financial metrics convert the process improvements into hard or soft dollars. These metrics always include some kind of dollar impact.

First Pass Yield is a quality metric of a process's performance. FPY is expressed as a percentage and is calculated by dividing the number of 'right the first time' units by the quantity of work entering the process.

An order sequencing which the first order entered into the system is the first order to be worked on and to leave the system. This prevents earlier orders from being delayed in favor of newer, incoming orders.

A visual problem solving tool used to identify and document relationships between effects and potential causes.

See also Cause & Effect Diagram and Ishikawa Diagram