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What is Sig Sigma?

Six Sigma is a data driven, customer focused, and result oriented methodology which uses statistical tools and techniques to systematically eliminate the defects and inefficiencies to improve processes. It is a systematic method to measure and analyze the business processes to identify critical factors affecting business results, thereby improving the processes and establishing controls around the improved processes.

Six sigma is a widely accepted quality concept in the corporate world today. Six Sigma started its journey in the 1980s as a data driven method to reduce variation in electronic manufacturing processes in Motorola Inc. in the USA. Six Sigma became famous when Jack Welch made it vital to his successful business strategy at General Electric in 1995. Today it is used as a business performance improvement methodology all over the world in diverse industry including general manufacturing, construction, banking and finance, healthcare, education, government, KPO/BPO, IT/ Software. At present IT/ ITES sector companies are dynamically implementing Six Sigma and it is no more confined into manufacturing sector

The term ‘six sigma’ comes from statistics and is used in statistical quality control (SQC) which evaluates process capability i.e. the numerical measure of the ability of a process to meet the customer specifications. It was originated from terminology associated with manufacturing which refers the ability of manufacturing process to produce a very high proportion of output within specifications. The sigma rating of a process indicates its yield or percentage of defect-free outputs it produces. A six sigma process is the one which produces 99.99966% statistically defect-free outputs which is equivalent to 3.4 defects per million opportunities (DPMO).

Six sigma uses a set of quality management and statistical methods and creates a team of experts within the organization (Executive Leadership, Champions, Black belt, Green Belt, Yellow Belt etc.) having specific skill sets required to carry out the six sigma project. Each six sigma project carried out within an organization follows a defined sequence of phases with quantifiable value targets e.g. reduction in process cycle time, reduce cost, increase in quality rating/ customer satisfaction index, reduction is defect rate.

Road Map of a Six Sigma project:

  1. Identify the areas of improvement
  2. Define the problem statement and goals for improvement in quantifiable terms (i.e. which can be measured numerically)
  3. Determine the resources required for the project
  4. Formulate a project deliverables timeline in a phased manner
  5. Establish performance parameters/ metrics
  6. Gather baseline information about the process
  7. Validate measurement system for the process output (Y)
  8. Examine the data collected in the earlier phase to determine a prioritized list of sources variation
  9. Explore potential causes (potential X’s for causation) and determine the impact of each X has on the response Y
  10. Determine the optimum level of vital few X’s
  11. Validate measurement system for X’s
  12. Verify process improvement
  13. Develop control mechanism to ensure sustenance of the improved process

Some of benefits of Six Sigma are given below:

  • Six Sigma helps companies to reduce cost and improve productivity
  • Six Sigma improves quality of projects output by reduction of inefficiencies and defects
  • Six Sigma increases customer satisfaction, and loyalty
  • Certified Six Sigma Professionals can help increasing ROI significantly

Six Sigma Methodologies

There are mainly two methodologies of Six Sigma namely DMAIC and DMADV.

DMAIC is a data-driven Six Sigma methodology for improving existing products and processes. The DMAIC process should be used when an existing product or process can be improved to meet or exceed the customer’s requirements. DMAIC methodology consists of five phases: D – Define, M – Measure, A – Analyze, I – Improve, C – Control.

  • Define – Define the project targets and customer (internal and external) deliverables.
  • Measure – Measure the process to determine the current process performance (baseline).
  • Analyze – Find out the root causes of the defects.
  • Improve – Improve the process by eliminating defects.
  • Control – Control the future performance.

DMADV is a common DFSS (Design for Six Sigma) methodology used to develop a process or product which does not exist in the company. DFSS is an application of Six Sigma which focuses on the design or redesigns of the different processes used in product manufacturing or service delivery by taking into account the customer needs and expectations. DMADV is used when the existing product or process does not meet the level of customer specification or Six Sigma level even after optimization with or without using DMAICDMAIC methodology consists of five phases: D – Define, M – Measure, A – Analyze, D – Design, V – Validate.

  • DEFINE the project goals and customer deliverables
  • MEASURE the process to determine the current performance level
  • ANALYZE and determine the root causes of the defects
  • DESIGN the process in detail to meet customer needs
  • VALIDATE the design performance and its ability to meet the customer needs

Six Sigma versus Traditional Quality

Six Sigma Traditional Quality
Decisions are driven by data Decisions are taken based on a combination of data and ‘gut feel’.
Control process inputs (Focus on X’s) Inspection method (Focus on Y)
Structured use of statistical tools to help in problem solving No formal structure exists for the application of tools
Structured training in applied statistics Lack of structured training
Root cause approach Band aid approach
Prevention over inspection Inspection over prevention

Six Sigma Characteristics

  • Customer centric
  • Process focused
  • Data driven
  • Involvement and support of the top management
  • Cultural change
  • Breakthrough performance gains
  • Structured improvement deployment
  • Validation through key business results
  • Reduction in variation
  • Elimination of defects
  • Improvement in yield
  • Enhancement in customer satisfaction
  • Strengthening of the bottom line

Why get Six Sigma Certified?

6sigmastudy’s widely accepted certifications help individuals and organizations complete projects with greater efficiency, increase ROI and customer satisfaction.

Many organizations around the globe adopted Six Sigma and Lean to increase quality of the outputs and to reduce cost by means of reducing defects and removing inefficiencies. There are numerous benefits of adopting Six Sigma.

For Individuals

Growing popularity and acceptability of Six Sigma and Lean has created a great demand for certified professionals in the job market. Grab the opportunity and join this growing community.

For Organizations

Six Sigma and Lean certified professionals help organizations with improved level of project management that leads to increased ROI.

6sigmastudy Certification Hierarchy

6sigmastudy certified professionals help organizations with improved level of processes and quality outputs that lead to increased ROI. They have knowledge pertaining to and can anticipate issues related to the practical implementation of Six Sigma.

Six Sigma Yellow Belt

Overview

The Six Sigma Yellow Belt course is tailored to help anyone interested to know what Six Sigma is; learn key concepts in Six Sigma; and to get a basic understanding of how Six Sigma framework works in delivering successful projects. This course is included as a part of Free Lifetime Primary Membership. Once the course is completed, the student needs to take an assessment to get the certificate. The purpose of the exam is to confirm you have basic understanding of Six Sigma.

Certification Exam Format

  • Multiple Choice
  • 40 questions for the exam
  • One mark awarded for every right answer
  • No negative marks for wrong answers
  • 60 minutes duration
  • 28 questions need to be answered correctly to pass
  • Online un-proctored exam

Audience Profile

Anyone interested in knowing more about Six Sigma can take up this course and exam for free.

Prerequisites

There is no formal prerequisite for this course.

Six Sigma Green Belt

Overview

Six Sigma Green Belt course focuses on providing students with an understanding of the various Six Sigma tools and techniques useful to improve the production process and minimize defects in the end product with a greater focus on the practical implementation of these tool and techniques in the organization.

Certification Exam Format

  • Multiple Choice
  • 90 questions per exam
  • One mark awarded for every right answer
  • No negative marks for wrong answers
  • 120 minutes duration
  • Proctored online exam

Audience Profile

This course is highly recommended for employees and organizations requiring a standardized approach to problem solving for the purpose of continuous improvement in Quality Management.

Prerequisites

Preferably Six Sigma Yellow Belt (But Not Mandatory)

Training:

  • When you apply for the Six Sigma Green Belt certification, you get access to a free online course
  • If you are looking for classroom training before certification, please refer to Training section to find a Registered Education Provider in your place.

 

 

Six Sigma Black Belt

Overview

Six Sigma Black Belt (SSBB) certification focuses on testing students on their comprehensive understanding of the various Six Sigma tools and techniques. The objective of the online value added course (complementary with certification exam) is to develop a comprehensive knowledge base that helps students to function effectively as a Six Sigma Black Belt in various projects. The tools and techniques cover both quantitative and non-quantitative analysis along with other necessary knowledge to improve the production process and minimize defects in the end product with a greater focus on the practical implementation of these tool and techniques in the organization.

Certification Exam Format

  • Multiple Choice
  • 125 questions per exam
  • One mark awarded for every right answer
  • No negative marks for wrong answers
  • 180 minutes duration
  • Proctored online exam

Audience Profile

This certification is highly recommended for employees, professionals who require developing comprehensive understanding of practical implementation of Six Sigma methodologies with the help of various tools and techniques for the purpose of continuous improvement in processes and products.

Prerequisites

Six Sigma Green Belt certification

Lean Six Sigma Black Belt

Overview

Lean Six Sigma Black Belt (LSSBB) certification focuses on testing students on their comprehensive understanding of the various Six Sigma tools and techniques in conjunction with Lean. The objective of the online value added course (complementary with certification exam) is to develop a comprehensive knowledge base that helps students to function effectively as a Lean Six Sigma Black Belt in various projects. The tools and techniques cover both quantitative and non-quantitative analysis along with other necessary knowledge to improve the production process, minimize inefficiencies and increase with a greater focus on the practical implementation of these tool and techniques in the organization.

Certification Exam Format

  • Multiple Choice
  • 125 questions per exam
  • One mark awarded for every right answer
  • No negative marks for wrong answers
  • 180 minutes duration
  • Proctored online exam

Audience Profile

This certification is highly recommended for employees, professionals who require developing comprehensive understanding of practical implementation of Lean Six Sigma with the help of various tools and techniques for the purpose of continuous improvement in processes and products.

Prerequisites

Six Sigma Green Belt Certification