




Herkunft: http://www.jaguarsro
okiestore.com 


/www.cheapmanchesterunitedshop.com/ z
The Six Sigma approach uses a number of related measures to assess the performance of operations processes.
• A defect is a failure to meet customerrequired performance (defining performance measures from a customer’s perspective is an important part of the Six Sigma approach)
• A defect unit or item is any unit of output that contains a defect (i.e. only units of output with no defects are not defective Cheap Romelu Lukaku Jersey , defective units will have one or more than one defect)
• A defect opportunity is the number of different ways a unit of output can fail to meet customer requirements (simple products or services will have few defect opportunities, but very complex products or services may have hundreds of different ways of being defective)
• Proportion defective is the percentage or fraction of units that have one or more defect.
• Process yield is the percentage or fraction of total units produced by a process that are defectfree (i.e. 1 − proportion defective)
• Defect per unit (DPU) is the average number of defects on a unit of output (the number of defects divided by the number of items produced)
• Defects per opportunity are the proportion or percentage of defects divided by the total number of defect opportunities (the number of defects divided by (the number items produced × the number of opportunities per item)
• A defect per million opportunities (DPMO) is exactly what it says, the number of defects which the process will produce if there were one million opportunities to do so.
• The Sigma measurement is derived from the DPMO and is the number of standard deviations of the process variability that will fit within the customer specification limits.
