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Six Sigma: History and Core Concepts essay

Six Sigma: History and core concepts.

The origins of the Six Sigma model can be traced back to the definition of the standard curve by Carl Friedrich Gauss (1777-1855). Six Sigma used as measurement level in product variance can be traced back to 1920 when Shewhart Walter demonstrated that the point at which a process requires rectifying is three sigma from the mean. Most metric criteria (zero defects, Cpk, etc.) were introduced later, but some credit to an engineer in Motorola named Bill Smith for coining the term "Six Sigma. ("Six Sigma" incidentally, is a Motorola trademark registered with the federal government).

Motorola's Engineer Bill Smith is the father of Six Sigma. Six Sigma enabled Motorola to become the first company to obtain the Malcolm Baldridge National Quality Award in 1988, just one year after initiating the Six Sigma concept. Glancing at the progress of Six Sigma at Motorola, numerous other companies such as Whirlpool, Dow Chemical, General Electric, Honey well, and DuPont adopted Six Sigma. They are amongst the early adopters. Looking at the performances of these companies, many other businesses have also embraced Six Sigma to enhance their operations, raising their level of errors and satisfy their customers.

Definition of Six Sigma

Six Sigma can be a very brilliant way to brand and package several elements of Overall Quality Management which happen in their right, irrespective of the Six Sigma development.

Six Sigma has to do with many various things for it has various definitions a lot of time and is perceived in more and more various ways today. Six Sigma continues to evolve. According to the United Kingdom Department of Trade and Industry, Six Sigma provides a statistical approach to achieve near-perfect efficiency.

Six Sigma study/analysis can concentrate on any service or production item, and has great importance on data analysis in customer-oriented activities, manufacturing, and design.

Central Concepts

Six Sigma provides a typical brand for several principles that many companies are using and will continue to apply to enhance productivity, provide services, and prepare for quality and performance enhancement. Six Sigma has caught the attention of companies in this respect. It is a vital tool in which the organizational transformation can be initiated and supported. Six Sigma has developed into an industry of its own.

Six Sigma offers an extremely flexible concept: It might be a metric of production quality for a Statistical Engineer; Six Sigma can be used as a corporate culture for a client service employee or a CEO. The Six Sigma was initially a real quality metric used for reducing defects in electronic components manufacturing processes.

However, Six Sigma can also be a methodology that calls and encourages team leaders and teams to take charge of the execution of the Six Sigma processes.


Six Sigma projects are based on two project methods inspired by Deming's plan-do-check-act cycle. The acronyms DMAIC and DMADV are contained in the following ways, each of five phases.

DMAIC is used for programs to enhance an existing business operation.

DMADV is used for the creation of a new process or product design projects.


DMAIC five phases are:

1. It defines product priorities aligned with customer demands and client policy.

2. Identify and Measure Critical To Quality characteristics (CTQ's), risks, product capabilities, and manufacturing process capabilities.

3. Evaluate options to be created and built, create a high-level plan, and evaluate construction capabilities to pick the best design.

4. It designs information, design optimization, and product testing planning. Simulation may be required at this phase.

5. Verify the specification, set up test runs, enforce the manufacturing process, and move it on to the process owners.


1. Clearly define the problem, the client's voice, and the project goals.

2. Track the main facets of the current process and collect relevant information.

3. Analyze the data for the investigation and clarification of relationships between cause and effect. Determine what the interactions are, and try to make sure both aspects are weighed. Check for the root source of the error under investigation.

4. Enhance or refine the current process based on statistical analysis using methods such as experiment design, error-proofing or poka-yoke, and regular work to create a new, potential mechanism of the state. Establish test runs to set up process capabilities.

5. Monitor the future state process to make sure all deviations from the target are resolved before they create defects. Control systems such as predictive process control, output processes, and virtual environments are introduced, and the operation is continuously tracked.

Examples of Six Sigma

Six Sigma has the potential to transform and make an organization far more effective. It works on various aspects that assist in implementing a proper management structure, lowering inventory levels, reducing lead times, and reaching the highest level of labor performance, etc.

● This can only be accomplished if all company staff works with trust, proper communication, and feedback. That would boost compliance and governance generally. Training can also be adapted to the needs of various departments and group culture. It is an essential element.

● Human resources are at stake when they sit together and analyze whether employees with this quality-control approach are in the right position and have excellent working quality. Six Sigma enables top management to assess workers' success and to delegate the proper work to the right person for the best performance.

● A crucial question is whether there is excess stock or reserve stock in the company. Thus, the group concerned is put to workSix Sigma: History and Core Concepts essay, and the excessive stock levels in the warehouse are of proper management and accounting. Then the team will strategize ways to reduce the stock through departmental communications.

● Six Sigma also encourages managers to come up with innovative ideas to help ensure the growth of the company. The main objective is not to replicate faults in the view of past developments and suggestions.

● This methodology can reduce the time needed to reach the customer by placing an order to meet customer requirements. That would accelerate the process and boost the value of the brand by satisfying the customers.

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