Six Sigma Quality Control

Six Sigma has proved itself the best quality control program, available in the market. Six Sigma is now increasingly used in many fields and sectors and is proving itself as a quality control improvement program. Six Sigma provides a statistical approach for solving any problem and thereby improves the quality level of the product as well as the company.

Six Sigma quality control program is a set of collective techniques, based on statistics, meant for increasing the quality level of the products and thereby provides the company with a ray of hope for the enhancement in consumer satisfaction. Six Sigma aims at reducing the number of possible defects to less than 3.4 defects per million opportunities, which creates a huge difference in the profit margin of the company, as well as in the quality level of the product.

Benefits of Six Sigma Quality Control Program:

  • It aims at achieving the highest degree of quality of the product within a specified period.
  • It aims to achieve the desired goals and objectives within a specified period, without compromising with the quality level of the product.
  • It aims for providing the employees a quality job satisfaction.
  • It provides a better quality framework for setting up of short term and long term goals and objectives.

Six Sigma Quality Control vs. Other Quality Systems: Six Sigma supervenes upon many of the quality improvement methodologies that were being used in the past. Six Sigma stands out as the most widely used and effective and at the same time a quality improvement program also. Six Sigma can be compared with many previous quality management programs in the following way:

1.    ISO 9001: ISO 9001 is the quality improvement strategy, based on set standards for specific companies. ISO 9001 and Six Sigma function in two different directions. The former is a quality improvement system while the latter is more than a quality improvement system. It is a set of statistical strategies used for improving the entire business of any firm. ISO 9001 can indicate the existence of any problem in any process but it fails to identify the exact problem. Six Sigma, on the other hand, not only identifies the actual problem, creating deviation in the desired results, but also provide solution for it. Six Sigma, with the help of DFSS (Design for Six Sigma) methodology, can design for new products and the processes, which would carry out the execution of the same. Moreover, Six Sigma also succeeds in achieving the following objectives set by ISO,

  • It allows for the reduction in the number of defects throughout the execution of the process.
  • It provides statistical techniques for defining, controlling and verifying the potential of any process.
  • It indicates the existence of the problem in any process if the output varies.
  • It focuses on the continuous improvement of the process and the quality of the product.

2.    Total Quality Management (TQM): TQM demands the application of quality principles throughout the process and aims for satisfying the internal, the external customers, and the suppliers. Unlike TQM, Six Sigma aims at picking up individual problems, which hinder the growth of any process and provides a statistically based solution, based on data and figures. TQM tends to apply the quality principles within few particular departments whereas Six Sigma aims at bottoming into every department, which is linked to the process. TQM’s limited methodology does not speak for the importance of deployment and execution of any process whereas Six Sigma’s DMAIC methodology focuses primarily on the importance of deployment and the execution of any process. Moreover, Six Sigma also succeeds in achieving the following objectives set by TQM,

  • It focuses on the importance of consumer satisfaction and is customer oriented.
  • It focuses on the continuous improvement in the process and the quality of the products.
  • It relies on data and figures rather than relying merely on assumptions.
  • It provides for a better overview of the various variables involved in any process.

3.    Lean Manufacturing: Lean Manufacturing, also known as Lean Production, calls for continuous eradication of the corporate waste in the production process. It helps in lowering the production cost, decreasing the production time and increasing the output of any process. Six Sigma aims at achieving the desired results by eradicating the number of defects and making the process more Lean. Besides, Six Sigma provides a broader platform for solving any problem with unknown cases. Six Sigma also succeeds in achieving the following objectives set by Lean Manufacturing,

  • It aims at reducing the number of defects in any process.
  • It reduces the production time taken while manufacturing a product.
  • It minimizes the inventory levels.
  • It maximizes the rate of production and provides a better output.

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