Six Sigma

In essence, Six Sigma is a strategy shared by today's most successful, quality-oriented enterprises. It places the customer at the very core of the business, viewing profit as the natural outcome of defect-free production and flawless processes. Wherever possible, these processes are governed by statistical and mathematical methods, backed by highly engaged employees who are deeply invested in the company's success.

— Walter Masing, Honorary Chairman of the DGQ

The deciding factor in a Six Sigma deployment is not a perfectionist concept, but rather the consistent and rapid execution of specific know-how. Six Sigma is not merely a statistical method; it is a breakthrough strategy designed to optimize multi-stage processes—starting with customer value, driving through internal operations and benefits, and ultimately reflecting in bottom-line business results. This is precisely why Six Sigma is built on the philosophy:

"Work Smarter, Not Harder!"

From a statistical standpoint, Six Sigma relies on principles that are nearly 200 years old, originally developed by the mathematician Carl Friedrich Gauss (the world's first unofficial "Six Sigma Black Belt"). The mathematical visual behind Six Sigma—the famous Gaussian normal distribution curve—was even featured on the former German 10-Mark banknote.

From a technical perspective, achieving Six Sigma—which practical quality management equates to a zero-defect level—requires an organization to meet the following conditions:

Understanding the Financial Impact: Recognizing that driving quality upward and reducing defects toward a zero-error rate fundamentally lowers the Cost of Poor Quality (COPQ) while boosting customer satisfaction.
Organizational Alignment: The readiness to align the entire corporate structure, and consequently all business units, toward this common goal.
Capability Execution: The ability to unlock this hidden potential through a higher level of professionalism in organizational structure, employee qualifications, and robust project management.

The following table illustrates just how much a poor quality level actually costs a company:

References

[1] TOEPFER, Armin: Six Sigma - Koncepce a příklady pro řízení bez chyb [Six Sigma - Concepts and Examples for Defect-Free Management], Computer Press, a.s., 2008.

Acknowledgments

The Six Sigma section was developed in close collaboration with Patrik Kajtár.