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From the course by University System of Georgia

Six Sigma Tools for Define and Measure

202 ratings

University System of Georgia

Six Sigma Tools for Define and Measure

202 ratings

Course 2 of 4 in the Specialization Six Sigma Yellow Belt

This course is for you if you are looking to learn more about Six Sigma or refresh your knowledge of the basic components of Six Sigma and Lean. Six Sigma skills are widely sought by employers both nationally and internationally. These skills have been proven to help improve business processes and performance. This course will cover the Define phase and introduce you to the Measure phase of the DMAIC (Define, Measure, Analyze, Improve, and Control) process. You will learn about Six Sigma project development and implementation, you will become familiar with project management tools, you will be introduced to statistics and understand its significance to Six Sigma, and finally you will learn about data collection and its importance to an organization. Every module will include readings, videos, and a quiz to help make sure you understand the material and concepts that are studied. You will also have the opportunity to participate in peer review exercises to give you the opportunity to apply the material to your daily life. Our applied curriculum is built around the latest handbook The Certified Six Sigma Handbook (2nd edition) and students will develop /learn the fundamentals of Six Sigma. Registration includes online access to course content, projects, and resources but does not include the companion text The Certified Six Sigma Handbook (2nd edition). The companion text is not required to complete the assignments. However, the text is a recognized handbook used by professionals in the field. Also, it is a highly recommended text for those wishing to move forward in Six Sigma and eventually gain certification from professional agencies such as American Society for Quality (ASQ).

From the lesson

Project Management Basics

Now that we have identified the Six Sigma project how to we begin to develop it? This module will cover the basics of project development and management. You will be introduced to many common aspects of a project plan as well as tools for managing your project. These tools include activity network diagrams, affinity diagrams, tree diagrams, relations charts, and matrix charts. Project Management is the second aspect of the Define phase in the DMAIC process of Six Sigma.

Defining the Problem Statement2:21

Developing a Project Plan2:53

Brainstorming & Diagramming Tools3:18

Other Project Planning Tools4:27

Six Sigma Phase Reviews2:41

Meet the Instructors

Christina Scherrer, PhD
Professor of Industrial Engineering
Department of Systems and Industrial Engineering
David Cook, PhD
Assistant Professor of Mechanical Engineering Technology
Department of Mechanical Engineering Technology
Gregory Wiles, PhD
Interim Chair and Assistant Professor
Department of Systems and Industrial Engineering
Bill Bailey, PhD
Assistant Professor of Industrial Engineering
Department of Systems and Industrial Engineering

Other project planning tools.

Prioritization matrix charts, relationships charts, and tree diagrams.

The prioritization matrix chart is ideal for

mutually exclusive selection of a machine or a software package.

The most popular type of matrix chart is the L-Matrix.

This allows you to quantify the attributes of an item you wish to evaluate for

purchase.

This means identifying categories that are important in the selection of your item,

such as certain costs or training for that item, and

placing a weight to each attribute.

We give the purchase cost a weight of 30%, or 0.30.

All of the criteria headings are assigned weights according to importance,

adding up to one.

The body of the matrix is filled with its own evaluation

of the machine characteristics.

Each machine and criteria is evaluated between 1 and 4, and

the higher the better.

For instance, for the installation cost,

those evaluating machine A is given a rubric that indicates the following.

If the machine has an installation cost included in the purchase cost, use 4.

If the machine has a separate installation cost, but it's insignificant, use 3.

If the machine has a separate installation cost, but

has a significant cost to it, use 2.

If the machine has a separate installation cost, but it is highly significant, or

a highly extra charge for that, use 1.

A similar rubric can pertain to other criteria headings.

The number 3 was assigned for the install cost, so

it's multiplied by 0.20 to get 0.60.

Then the row is totaled for an overall score.

The totals reveal that machine A is the logical choice to make.

A relationship chart is used to explore the cause and effect or

the influence multiple items may have relating to a problem.

This is simply an XY chart that has the items in the first column and

items across the top as column titles.

This simplified chart shows an example of relationships.

The relationships can be in different stages of relationship.

For example, let 0 be no relationship, 1 equals a strong relationship,

2 equals a moderate relationship, and 3 could equal a weak relationship.

In looking at this chart, you can see that there's a relationship between, for

instance, wrong delivery and computer glitch of a 2.

That means that there's a moderate relationship between the two.

You can also see that we have a strong relationship between wrong delivery and

scheduler at fault, which would be a 1.

And if you'll also notice that we have a 0, meaning that there's no relationship

between damaged items and scheduler at fault.

Tree diagrams are popular and looks like an organization chart.

This can also be accomplished during a brainstorming session.

The problem is represented at the top, while the affinities or

categories are branched out along with the possible problem areas to explore.

The tree diagram can be used to develop elements for a new product.

It could be used to show relationships of a production process.

It can be used to create new ideas and problem solving.

It can also be used to just outline steps needed to implement a project.

In this example, we see that the paint inspection failed.

Possible areas of concern could be the paint booth,

it could be the adhesive assembly, or it could be simply the design.

So we break that down even further to say, well,

what is it we're going to look at within these areas?

So you see, for instance, the paint booth.

We see that the sprayer could be broken.

It could be an overspray or under spray.

It could be the paint booth.

If it's on an assembly line, it could have a line speed issue.

Or you could have the wrong paint.

So these areas are explored by the team.

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