Six Sigma Approach to Internal Auditing - IIA Dallas Chapter
Six Sigma Approach to Internal Auditing - IIA Dallas Chapter
Six Sigma Approach to Internal Auditing - IIA Dallas Chapter
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<strong>Six</strong> <strong>Sigma</strong> at Raytheon<br />
<strong>Sigma</strong> Quality Level:<br />
The Higher the <strong>Sigma</strong> level, the Better the Quality<br />
Three <strong>Sigma</strong> Process<br />
<strong>Six</strong> <strong>Sigma</strong> Process<br />
LSL<br />
USL<br />
LSL<br />
USL<br />
-6σ -3σ 0 +3σ +6σ<br />
LSL: Lower Specification Limit<br />
USL: Upper Specification Limit<br />
σ: measure of variation in a process<br />
Specs are Cus<strong>to</strong>mer Driven<br />
-6σ -3σ 0 +3σ +6σ<br />
Reducing Variation = Reduces Waste Waste<br />
Lowers Cost! Cost!
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