If Sigma quality level equals six, chances for defective
products are 3,4 ppm. Achieving Six Sigma quality level involves
leadership, infrastructure, appropriate tools and methods, while
quality have to become a part of corporate business plan [4,5].
The main objective of Six Sigma initiative is to aggressively
attack costs of a quality. Overall costs of quality are, usually,
divided in tangible and intangible part. The tangible or visible part
of costs of quality, e.g. inspection and warranty costs, scrap,
rework and reject, can be approximated with only 10–15 % of
overall costs of quality. Remaining 85-90 % of quality costs are
usually intangible and, therefore, overlooked and neglected in
companies quality costs analyses.
Tools and methodology within Six Sigma [6,7] deal with
overall costs of quality, both tangible and intangible parts, trying
to minimize it, while, in the same time, increasing overall quality
level contribute to company business success and profitability.
If Sigma quality level equals six, chances for defectiveproducts are 3,4 ppm. Achieving Six Sigma quality level involvesleadership, infrastructure, appropriate tools and methods, whilequality have to become a part of corporate business plan [4,5].The main objective of Six Sigma initiative is to aggressivelyattack costs of a quality. Overall costs of quality are, usually,divided in tangible and intangible part. The tangible or visible partof costs of quality, e.g. inspection and warranty costs, scrap,rework and reject, can be approximated with only 10–15 % ofoverall costs of quality. Remaining 85-90 % of quality costs areusually intangible and, therefore, overlooked and neglected incompanies quality costs analyses.Tools and methodology within Six Sigma [6,7] deal withoverall costs of quality, both tangible and intangible parts, tryingto minimize it, while, in the same time, increasing overall qualitylevel contribute to company business success and profitability.
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