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What is Six Sigma?
Six sigma is a technique to improve the process of manufacture in Industries. Six sigma is a method to improve the procedure of manufacture by removing defects and shortcomings. Jack Welch first introduced this technique in Motorola and made it central to the business strategy at General Electric in 1995.
Six Sigma projects follow two project methodologies inspired by Deming’s Plan-Do-Check-Act Cycle. These methodologies, composed of five phases each, bear the acronyms DMAIC and DMADV.
�DMAIC is used for projects aimed at improving an existing business process.
�DMADV is used for projects aimed at creating new product or process designs.
The DMAIC project methodology has five phases:
�Define the system, the voice of the customer and their requirements, and the project goals, specifically.
�Measure key aspects of the current process and collect relevant data.
�Analyze the data to investigate and verify cause-and-effect relationships. Determine what the relationships are, and attempt to ensure that all factors have been considered. Seek out root cause of the defect under investigation.
�Improve or optimize the current process based upon data analysis using techniques such as design of experiments, poka yoke or mistake proofing, and standard work to create a new, future state process. Set up pilot runs to establish process capability.
�Control the future state process to ensure that any deviations from the target are corrected before they result in defects. Implement control systems such as statistical process control, production boards, visual workplaces, and continuously monitor the process.
The DMADV project methodology, known as DFSS (“Design For Six Sigma”) features five phases:
�Define design goals that are consistent with customer demands and the enterprise strategy.
�Measure and identify CTQs (characteristics that are Critical To Quality), product capabilities, production process capability, and risks.
�Analyze to develop and design alternatives
�Design an improved alternative, best suited per analysis in the previous step
�Verify the design, set up pilot runs, implement the production process and hand it over to the process owner(s).
There are numerous benefits of six sigma as a way to address issues and problems. Among the benefits of six sigma is the decrease in defects that are allowed to reach the customer. You can get some sense of the benefits of six sigma by reviewing some six sigma projects.
Other benefits of six sigma include
� Focus on customers.
� Improved customer loyalty.
� Reduced cycle time.
� Less waste.
� Data based decisions.
� Time management.
� Sustained gains and improvements.
� Systematic problem solving.
� Employee motivation.
� Data analysis before decision making.
� Faster to market.
� Team building.
� Improved customer relations.
� Assure strategic planning.
� Reductions of incidents.
� Measure value according to the customer.
� Better safety performance.
� Understanding of processes.
� Effective supply chain management.
� Design and redesign products/services.
� Knowledge of competition, competitors.
� Develop leadership skills.
� Breakdown barriers between departments and functions.
� Management training.
� Improve presentation skills.
� Integration of products, services and distribution.
� Use of standard operating procedures.
� Better decision making.
� Improving project management skills.
� Sustained improvements.
� Alignment with strategy vision, and values.
� Increased margins.
� Greater market share.
� Supervisor training.
� Lower costs to provide goods and services.
� Fewer customer complaints.
This article is written by: ACS Prince Kunal
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