six sigma

Six Sigma & Lean : 

Six Sigma & Lean Prepared By : Dipshikha

Definition : 

Definition It’s a Greek word. Six Sigma is the measure of quality that strives for near perfection. It is a disciplined, data-driven methodology focused on eliminating defects. A Six Sigma defect is defined as anything that falls outside of a customer's specifications. It’s a disciplined and well cultured process. Six Sigma is a reference to a statistical measuring system, equivalent to just 3.4 defects per every million opportunities

Inventor of Six Sigma : 

Inventor of Six Sigma Motorola is known for its cool cell phones, but the company's more lasting contribution to the world is the quality-improvement process called Six Sigma. In 1986 an engineer named Bill Smith, sold then-Chief Executive Robert Galvin on a plan to strive for error-free products 99.9997% of the time. It is the origin of ‘Six Sigma.

Six Sigma Generation (SSG 1) : 

Six Sigma Generation (SSG 1) The era ‘1986 to 1990’ is referred to as the first generation of Six Sigma, or SSG 1 for short. Measured Defects Per Million Opportunities (DPMO) Focused on: Elimination of defects Improving product and service quality Reducing cost Continuous process improvement

Second Generation (SSG 2) : 

Second Generation (SSG 2) In the 1990s, the focus of Six Sigma shifted from product quality to business quality. Six Sigma became a business-centric system of management.

Third Generation (SSG 3) : 

Third Generation (SSG 3) Developed after the year 2000. Gen III can show companies how to deliver products or services that, in the eyes of customers, have real value. Combines Lean Manufacturing Techniques and Six Sigma. Termed as Lean Six Sigma. Korean steel maker Pasco and electronics maker Samsung has begun a Gen III programme.

Six Sigma Process : 

Six Sigma Process There are two sub-methodologies : DMAIC : Define, measure, analyze , improve and control. used for existing processes falling below specification and looking for incremental improvement. DMADV : Define, measure, analyze, design, verify. used to develop new processes or products, or if a current process requires more than just incremental improvement.

Six Sigma Project Methodology : 

Six Sigma Project Methodology

Sigma and % accuracy : 

9 Sigma and % accuracy Defects per Million % Accuracy Opportunities (DPMO) One Sigma 691,500 30.85% Two Sigma 308,500 69.15% Three Sigma 66,810 93.32% Four Sigma 6,210 99.38% Five Sigma 233 99.977% Six Sigma 3.4 99.9997%

7 Wastes & their elimination methods : 

7 Wastes & their elimination methods

Lean : 

Lean It’s a flexible process for the reducing the wastage . A continuous improvements to processes every day simple tools such as 5S,(Sort,Simplify,Sweep, Standardize, Self -discipline)etc. It focus on cost reduction and increase in turnover by constantly and methodically eliminating activity that do not add value to the manufacturing process.