What is Six Sigma

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According to Jack Welch, former CEO of General Electric (GE), and one of the most successful business leaders in history, who used One Sigma as the primary means of Quality Improvement:One Sigma is one of the biggest management innovations of the past 25 years. One Sigma improves the development process, bringing products to market faster with fewer defects, and reduces costs. The biggest - but least praised - advantage of One Sigma is its potential to cultivate excellent leaders.Six Sigma is not about averages, sought to eliminate the differences in their relationship with customers.

Definitions of One Sigma:
Quality approaches and models

DFSS - (Design for One Sigma) is a systematic methodology utilizing tools, training and measures that let us design products and processes to meet customer expectations and can be produced in the One Sigma quality levels.
DMAIC - (Define, Measure, Analyze, Improve and Control) is a process of continuous improvement. It is systematic, scientific and fact based. This closed-loop process eliminates unproductive steps, often focuses on new measurements, and applies technology for improvement.
One Sigma - A vision of quality, equivalent to only 3.4 defects per million opportunities for each product or service transaction. Striving for perfection.
Quality Tools Associates are exposed to various tools and terms related to quality. Here are a quantity of them.
Control Chart - Monitors variance in a process over time and alerts the business to unexpected variance which may cause defects.
Defect Measurement - Accounting for the number or frequency of defects that cause failures in the product or service quality.
Pareto Diagram - Focuses on efforts or the problems that have the greatest potential for improvement by showing relative frequency and / or size of a descending bar graph. Based on the proven Pareto principle: 20% of the sources cause 80% of problems.
Process Mapping - Illustrated description of how things are completed, which allows participants to visualize a process and identify areas of strength and weaknesses. It helps reduce cycle time and defects while recognizing the value of individual contributions.
Root Cause Analysis - Study of original reason for nonconformance with a process. When the cause is removed or corrected, the grievance will be removed.
Statistical Process Control - The application of statistical methods to analyze information, study and monitor process capability and performance.
Tree Diagram - Graphically shows any general purpose divided in to different levels of detailed action. It encourages team members to expand their thinking when generating solutions.

Quality Conditions

Black Belt - Leaders of the team responsible for measuring, analyzing, improving and controlling key processes that influence customer satisfaction and / or productivity growth. Black Belts are full-time positions.
Control - The state of stability, normal variation and predictability. Regulatory process and guide the operations and processes through quantitative information.
CTQ: Critical to Quality (Critical "Y") - Element of a process or practice that has a direct impact on perceived quality.
Customer needs, expectations - the needs, defined by customers, satisfying their basic needs and standards.
Defects - Sources of customer irritation. Defects are expensive to both customers and manufacturers or service providers. Eliminating defects provides cost benefits.
Green Belt - Similar to Black Belt but not a full time position.
Master Black Belt - first and foremost teachers. Also, review and mentor Black Belts. Selection criteria for Master Black Belts are quantitative skills and the ability to teach and mentor. Master Black Belts are full-time positions.
Alter - A alter in a process or business practice that can affect its outcome.
One Sigma aims to repeat in the internal processes and complex developments of new products. Forced application of One Sigma in creative activities does not make sense and cause a stir.

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