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  2. CTQ tree - Wikipedia

    en.wikipedia.org/wiki/CTQ_tree

    CTQ trees are often used as part of Six Sigma methodology to help prioritize such requirements. CTQs represent the product or service characteristics as defined by the customer/user. Customers may be surveyed to elicit quality, service and performance data. They may include upper and lower specification limits or any other factors.

  3. Critical to quality - Wikipedia

    en.wikipedia.org/wiki/Critical_to_quality

    Critical to quality is an attribute of a part, assembly, sub-assembly, ... Design for Six Sigma; Total quality management; Total productive maintenance; References

  4. 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.

  5. Process capability index - Wikipedia

    en.wikipedia.org/wiki/Process_capability_index

    Safety or critical parameter for existing process 1.50 1.45 Safety or critical parameter for new process 1.67 1.60 Six Sigma quality process 2.00 2.00

  6. Quality management - Wikipedia

    en.wikipedia.org/wiki/Quality_management

    Six Sigma — 6σ, Six Sigma combines established methods such as statistical process control, design of experiments and failure mode and effects analysis (FMEA) in an overall framework. PDCA — plan, do, check, act cycle for quality control purposes. (Six Sigma's DMAIC method (define, measure, analyse, improve, control) may be viewed as a ...

  7. Design for Six Sigma - Wikipedia

    en.wikipedia.org/wiki/Design_for_Six_Sigma

    Measurement is the most important part of most Six Sigma or DFSS tools, but whereas in Six Sigma measurements are made from an existing process, DFSS focuses on gaining a deep insight into customer needs and using these to inform every design decision and trade-off. There are different options for the implementation of DFSS.