Lean Six Sigma QuickStart Guide by Benjamin Sweeney

Author:Benjamin Sweeney
Language: eng
Format: epub
Publisher: ClydeBank Media LLC
Published: 2017-06-12T23:30:04+00:00

Eliminating Waste & Increasing Efficiency

True to Lean form, making things visible leads to action, and invisible problems can go on indefinitely. We know that kaizen is the culture of continuous improvement that is a common thread running through the entire Lean model, and that the vigilant elimination of waste in the forms of muda, muri, and mura are also key components of Lean operations, but in order to begin to innovate waste out of a process, that waste first has to be found.

To measure performance, decision makers use metrics from collected data that are compared to a benchmark—how it was versus how it is—and identify if efficiency has increased, stayed the same, or gone down. Metrics of time efficiency are powerful tools to this end.

Process Cycle Efficiency

Process cycle efficiency, or PCE, is one of the best, and simplest, measures of a process’s efficiency and performance. PCE is a product of the measure “value-add time” or the time that is spent by the process to effect changes in materials to produce fitness for the customer’s needs (also known as utility).

Value-Add Time – The total duration of all periods during a process when value is added through the creation of utility. It is calculated by finding the sum of all value-added time throughout the process.

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