Quality America Inc

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Quality America offers statistical process control and document control software, as well as Six Sigma software, training and consulting. The company has provided software, books and training services to tens of thousands of companies in more than 25 countries. Quality America s statistical process control charting is a primary analysis tool of quality improvement. Control charts identify sources of variation in a process, differentiating between process disruptions or shifts (so called special causes) and the expected process variation. The real-time identification of process shifts improves the response mechanism and prevents tampering with stable processes. Quality America was founded in 1983 and maintains headquarters in Tucson, Ariz.