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Overview of Six Sigma

This overview of Six Sigma will quickly summarize the next six (6) modules that are all presented in greater depth throughout the define phase and of course throughout the entire Green Belt curriculum. These lessons provide far more insight regarding an "overview of Six Sigma" but this page is dedicated to "scratching the surface and outlining what the rest of the course is about.

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Here is a super quick overview of Six Sigma that will give you highlights of the next 6 "modules"

  • What is Six Sigma
  • Six Sigma History
  • Problem Solving: Y=f(x)
  • Six Sigma Methodology
  • VOC & VOB
  • Roles & Responsibilities

What is Six Sigma

To keep it in simple terms, Six Sigma is a quality and process improvement methodology that focuses on getting processes to deliver within customer expectations 99.99967% of the time.

If a process is able to do that, there will only be 3.4 defects for every million opportunities.

Six Sigma History

Six Sigma was developed at Motorola in the late 1980's and became more popular nearly a decade later with it's adoption by General Electric in the mid 1990's

Problem Solving: Y=f(x)

The Y=f(x) equation suggests that "Y" (the process performance we're trying to get to 99.99967%) is a function of "x".

It's fancy speak for "your process performance is driven by certain 'things' or x's"

Using Six Sigma methods you will find out what "things" drive your process and focus on the ones that have the most significant impact.

Six Sigma Methodology

Six Sigma follows a disciplined approach to achieving high quality and stellar process performance. The methodology is referred to as DMAIC

  • Define
  • Measure
  • Analyze
  • Improve
  • Control

Following this rigorous method you will identify your critical x's and improve your process

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Voice Of Customer and Voice Of Business are important aspects to achieving high quality and best in class process performance.

Getting VOC and VOB is required because you will need to understand what the performance requirements are for your process so that you can measure yourself against them and be sure you're providing them to you customer and business.

Roles & Responsibilities

There are various roles in Six Sigma that have specific responsibilities. You will learn the details of each throughout the modules of this lesson. The Top 5 most common and critical roles in Six Sigma are:

  • Black Belt or Green Belt
  • Master Black Belt
  • Champions
  • Stakeholders
  • SME's (Subject Matter Experts)

If you're new to Six Sigma, this brief overview may be helpful to provide an idea of what you will learn next. Even seasoned veterans of Six Sigma have a need to come up for air and simplify their world.

We liken this summary to explaining Six Sigma to your mother or father. As you progress throughout our free training material, you will gain such a deep knowledge-base that it will be important for you to revisit this summary so you don't get "wrapped around the axle" or lost in the weeds!

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