Sigma Science Inc. (pka. Six Sigma Associates) was established in January 1993 to assist companies implement and utilize tools and techniques of Sigma Science (and the original Six Sigma) to become more efficient and effective.  We have over 120 combined years of practical applications experience dealing with a variety of design, manufacturing/non-manufacturing environments and with a variety of process improvement techniques. We have been recognized by the American Supplier Institute, the University of Tennessee & Wisconsin, the Electronics Industry Association and the Association Connecting Electronics Industries for applications of continuous improvement techniques.  In addition, we have been recognized by the American Society of Transportation and Logistics and the National Tooling and Machining Association for significant contributions.  We have participated in ANSI, ISO (TC176 & TC69) & IEC (TC56) standards development including IPC-PC-90 and ANSI/EIA-599. We have conducted workshops on Sigma Science and Design of Experiments throughout Asia (including co-instruction with Dr. Genichi Taguchi), Europe, North and South America, have authored numerous books and articles on continuous quality improvement and have developed numerous courses on the tools and techniques of continuous improvement. We cultivated the use of Process Mapping, Thought Mapping, Factor Relationship Diagrams, Ross’ Rules of Analysis, the Ross metric and a host of other methods translating difficult statistical methods into practical engineering techniques. Clients have included AlliedSignal Aerospace, Whirlpool, Abbott Labs, Oakley, Electrolux, Weber, Jarden Home Brands, Sanford, Lutron Electronics, Honeywell, Milwaukee Electric Tool, PPG, Newell Rubbermaid, Meggitt Electronics, Boston Scientific, Tennant Company, Guidant, Bell Helicopter, Endevco, USPC, Cytec Industries, Thermo King, General Electric, Xerox, Cytec Engineered Materials, Toppan, Siemans, P&G, Texas Instruments, Georgia Pacific, Clayton, SmithKline Beecham, Brasmotor, MagneTek, Matsushita and ABB.

We specialize in: Analytical Statistics, Critical Thinking, Scientific Method, Application of Statistical Thinking to the Engineering Discipline, Sampling and Design of Experiments.


Critical Thinking: the intellectually disciplined process of actively and skillfully conceptualizing, applying, analyzing, synthesizing, evaluating, critiquing and/or predicting information gathered from, or generated by, observation, experience, reflection, reasoning, communication, or sampling as a guide to belief and action.


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