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On the general discussion forum of this website (www.iSixSigma.com), you will find a “thread” that provides a foundational answer to your question.  The built-in search engine should help you with this task.

Arguably, acceptance sampling is an effective and efficient means to ensure the proper surveillance of product and service quality.  Using this approach, a random sample (of product or service) is inspected or tested to determine if the observed level of quality is acceptable or unacceptable.  If the sample supports the hypotheses of unacceptability, then certain […]

Once is a great while, there is a need to estimate or otherwise approximate the tail probability of an extreme standard normal deviate – such as Z = 7, Z = 10, or even higher.  For example, certain types of reliability problems rely on such assessments. But as many already know, most published tables of […]

We must understand the sigma of a process is merely an equivalent unilateral figure-of-merit. As such, it is always regarded (and reported) as a short-term measure of capability. The metric can be directly computed when continuous data is at hand, or it can be statistically synthesized from discrete data. In the latter context, a reported sigma is only […]

Asking for the optimal way to sell an organization on the merits of Six Sigma is much like asking how two people how they can best develop “love and admiration” for each other.  Your intent and focus is laudable, but your personal “brochure” is most likely “a little on the light side,” especially when given […]

Where the idea of “process improvement” is concerned, it is now well understood that Six Sigma can play a most decisive role.  Specifically, it can serve to significantly improve the process of market forecasting. For example, consider the instance where an organization attempts to deploy a certain type of ARIMA model from which to forecast […]

Please recognize that the “art and science” of process mapping is quite generic by nature.  You should apply the mapping tools, techniques, and procedures in the given situation just as you would in any other type of situation.  Granted, the variable labels will change – but that’s about it.  Simply stated, you must define what […]

Thanks to modern technology, we have before us a virtual mountain of information.  On the Internet, we can find many case studies on the subject of DOE (design-of-experiments).  For a wide area success stories and general discussion, you may want to visit the following websites: 1) http://www.statease.com/articles.html2) https://www.isixsigma.com/tt/doe/3) http://class.et.byu.edu/mfg340/lessons/designofexperiment/4) http://members.cox.net/asqsd/kn/publications.htm In addition to these sources, […]

This is much like asking if you have ever been caught in a lie.  No matter how you answer, the resulting conclusion will certainly not enhance your reputation – but will most assuredly harm it (perhaps even more so than currently exists).  If you were to contend that your project should be garbed in the […]

Generally speaking, we use DFSS to close value-based gaps during the design phase of a product, service, business deal, or just about anything that adds value. Of course, this is accomplished in such a way that another gap is not propagated somewhere else in time and space.  In other words, we leverage the ideas and […]

To begin, we must consider the idea of “organizational culture.” In the book “Organizational Behavior” by Robert Kreitner and Angelo Kinicki, the culture of an organization is defined as: “The set of shared, taken-for-granted implicit assumptions that a group holds and that determines how it perceives, thinks about, and reacts to its various environments.” Based […]

Creating a process scorecard is not an easy or straightforward task. It becomes even more difficult when the scorecard is comprised of continuous and discrete performance metrics, each having a unique level of complexity (defect opportunity space). Even more perplexing is when some of the baseline metrics are short-term in nature while others are inherently […]

In education, Six Sigma pertains to improving the quality of matter taught, the character generated of the pupils, and the quality of study and school life. It is a system by which principals and teachers can instill process excellence across the entire organization.

What is Six Sigma? Why do we need Six Sigma? Explaining Six Sigma is no easy task, but as a Quality professional we are expected to clearly articulate the benefits and necessity. If you can’t, you risk losing believers within your business. Use this simple 3 step explanation to help guarantee your success.

Value stream mapping is a lean manufacturing or lean enterprise technique used to document, analyze and improve the flow of information or materials required to produce a product or service for a customer. Full definition.