Introduction to Six-Sigma

Welcome

What is Six Sigma?Six Sigma is originally developed by Motorola to

systematically improve processes by eliminating defects.

Sigma is the Greek symbol used for Standard Deviation

of population.

Six Sigma is a statistical measure of quality, which

reflects process capability;

being 99.9997% defect free in process and product.

Mr. Bill Smithat Motorola in 1986

The quality improvement methodologies such as Q.C, TQM, and Z.D. Like

its predecessors, Six Sigma asserts the following:

Continuous efforts to reduce variation in process outputs is key to

business success

Manufacturing and business processes can be measured, analyzed,

improved and controlled

Succeeding at achieving quality improvement requires commitment

from the entire organization, particularly from top-level management

Difference between 3Sigma & 6Sigma

at 3 sigma. . .

•There are 964 U.S. flight cancellations per day.

•The police make 7 false arrests every 4 minutes.

at 6 sigma. . .

• 1 U.S. flight is cancelled every 3 weeks.

• There are fewer than 4 false

arrests per month.

Ingredients of Six sigma

Q.C

T.Q.M.

Z.D

Elements of Six Sigma

•The Customer

•The Process

•The Employee

Methodology of Six sigma

D M A I C• Define

• Measure

• Analyze

• Improve

• Control

D - DEFINE

Define project boundaries (scope) the stop and start

of the process

Define who customers are, what their requirements

are for products and services, and what their

expectations are ?

• M - Measure

Measure the actual perfomance which was

previously planned.

Collect data & Develop a data collection Compare to customer survey results to determine shortfall

• A- Analyze

Analyze the data collected and interpret it,

determine the defects.

Find the solution to minimize the defects.

I- Improve

After minimizing defects improve your target

customer by thinking innovately.

•Create innovate solutions using technology and

discipline

C- Control

Institutionalize the improvements through the

modification of systems and structures (staffing,

training, incentives)

Control undefined problems or action plans

What Six Sigma involve?

Brainstorming sessions to identify important factors

Conducting a few experimental trials

Recognising significant factors which influence a process

Setting these factors to get maximum output.

When to use Six Sigma?

Unknown Situation

In a complex situations

Why to adopt Six sigma?

Process for problem solving

Consistency with results

Six sigma levels

3 levels/Belts

1-Green belt

2-Black belt

3-Master Black belt

How Six Sigma is practised?

-Focus on experimentation.

-Black Belt is coached by champion.

-Results are quantified.

-Stretched targets.

-Projects are of top priority.

Advantages of Six Sigma?

Better monitoring of processes

Better involvement of people

Staff morale is raised

Throughput is increased

Profits go up

Customer satisfaction.

Disadvantages of Six Sigma?

Engineers and managers are not interested in

mathematical statistics

Statisticians have problems communicating with

managers and engineers

Six Sigma Companies

Conclusion!

Raviraj Vangari

Rahul Boddul

Thank you

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