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  2. Defects per million opportunities - Wikipedia

    en.wikipedia.org/wiki/Defects_per_million...

    DPMO is stated in opportunities per million units for convenience: processes that are considered highly capable (e.g., processes of Six Sigma quality) are those that experience fewer than 3.4 defects per million opportunities (or services provided).

  3. Six Sigma - Wikipedia

    en.wikipedia.org/wiki/Six_Sigma

    Six Sigma (6σ) is a set of techniques and tools for process improvement.It was introduced by American engineer Bill Smith while working at Motorola in 1986. [1] [2]Six Sigma strategies seek to improve manufacturing quality by identifying and removing the causes of defects and minimizing variability in manufacturing and business processes.

  4. Design for Six Sigma - Wikipedia

    en.wikipedia.org/wiki/Design_for_Six_Sigma

    However, it has become clear that [weasel words] the promise of six sigma, specifically, 3.4 defects per million opportunities (DPMO), is simply unachievable after the fact. Consequently, there has been a growing movement to implement six sigma design usually called design for six sigma DFSS and DDICA tools.

  5. Business process - Wikipedia

    en.wikipedia.org/wiki/Business_process

    It was followed by the Six Sigma methodology in the mid-1980s, first introduced by Motorola. Six Sigma consists of statistical methods to improve business processes and thus reduce defects in outputs. The "lean approach" to quality management was introduced by the Toyota Motor Company in the 1990s and focused on customer needs and reducing of ...

  6. SIPOC - Wikipedia

    en.wikipedia.org/wiki/SIPOC

    In process improvement, SIPOC or suppliers, inputs, process, outputs and customers (sometimes in the reversed order: COPIS) is a tool that summarizes the inputs and outputs of one or more business processes in table form, with each of the words forming a column in the table used in the analysis.

  7. Shewhart individuals control chart - Wikipedia

    en.wikipedia.org/wiki/Shewhart_individuals...

    The normal distribution is NOT assumed nor required in the calculation of control limits. Thus making the IndX/mR chart a very robust tool. Thus making the IndX/mR chart a very robust tool. This is demonstrated by Wheeler using real-world data [ 4 ] , [ 5 ] and for a number of highly non-normal probability distributions.

  8. Calculation of glass properties - Wikipedia

    en.wikipedia.org/wiki/Calculation_of_glass...

    The calculation of glass properties allows "fine-tuning" of desired material characteristics, e.g., the refractive index. [1]The calculation of glass properties (glass modeling) is used to predict glass properties of interest or glass behavior under certain conditions (e.g., during production) without experimental investigation, based on past data and experience, with the intention to save ...

  9. Bill Smith (Motorola engineer) - Wikipedia

    en.wikipedia.org/wiki/Bill_Smith_(Motorola_engineer)

    William B. Smith, Jr. (1929 – 1993) was the "father of Six Sigma".Born in Brooklyn, New York, Smith graduated from the U.S. Naval Academy in 1952 and studied at the University of Minnesota School of Management (now known as the Carlson School of Management) but did not graduate.

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