An Overview of More Uncommon Six Sigma Tools

By Dharius Jennar


The Six Sigma certification Accelerated Life Testing technique involves exposing a product to an extreme range of the conditions it may encounter during its lifetime. Among the variables tested are temperatures, strain and stress. This process can help to identify potential defects or faults over the life of a product in a short period of time. The test results help engineers predict a product's service-life, as well as maintenance requirements.

Business Process Mapping involves defining a business entity's function. In addition, it identifies which individuals are responsible for various tasks, the expected standards of quality, and the definition of business success. The result is a Business Process Illustration, which identifies the specific requirements and functions of all internal processes.

Another Six Sigma training quality control method is the Check Sheet. This simple procedure involves the collection of data in real-time, at its point of operation. Most often, a blank document is used to identify information quickly and easily. There are five basic forms of Check Sheets. They include the Classification, Location, Frequency, Measurement Scale and Check List formats. The Classification model assigns defects or failures to specific categories. Location sheets track the physical locations of specific traits on a diagram. Frequency charts track the presence or absence of specific traits, as well as their number of occurrences. The Check List contains a to-do list of tasks which are checked-off when completed.

Another effective Six Sigma technique is the Five Whys. This method helps identify cause-and-effect relationships. Its goal is to identify the root cause of a defect, and devise a solution. The basic process begins by identifying a problem, and asking why it exists. When the answer is produced, it is also questioned. The process continues until the root cause is finally identified.

Root Cause Analysis (RCA) is a problem-solving process which can identify the root causes of events or defects. It is based on the theory that problems are most effectively solved by addressing their root causes, rather than simply treating their symptoms. When corrective measures are directed at the root causes, the recurrences of problems can be prevented.

A Histogram is an illustration of Six Sigma data distribution. It estimates the probable distribution of an ongoing variable. The x-axis often represents time, and the y-axis represents frequency. This graphic illustration reflects the density of data, and can be used for density estimation.

SIPOC (Suppliers, Inputs, Process, Outputs, Customers) is another useful technique. It is most effective when defined from right (beginning with Customers) to left (ending with Suppliers). The process helps identify all the critical elements involved with products.

Another technique is the Cost-Benefit Analysis. This procedure is an economic tool which helps determine whether a product or program is worth developing. It examines the total anticipated costs in relationship to the total anticipated benefits. When the benefits outweigh the costs, the product or program is more likely to be successful.

There are a wide range of Six Sigma Tools which can be effectively applied in many business environments. These quality-management techniques are effective at identifying potential problems and revealing appropriate solutions.




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