Abstract
This chapter introduces the critical-to-quality parameters that have the biggest impact on the customer and the business directly. It also facilitates in understanding the long-term variabilities in each of the quality characteristics associated with a Six Sigma project. Process mapping, VA/NVA assessment, data collection plan, gage R&R, check sheets are some of the techniques through which a good measurement system can be achieved. A detailed study of gage R&R for attributes and variables are presented with examples for understanding the reliability and predictability of the process. Both voice of process (VOP) and voice of customer (VOC) are critically examined for identification of value-added and non-value-added activities. A detailed discussion on data collection plan and its importance in explorative data analysis is discussed in detail here. The importance of descriptive statistics, probability statistics, and confirmatory analysis is detailed with illustrations and graphical studies in this chapter. We have also focused our attention to the 7-QC tools, considered to be the pillar of any statistical decision making in business and trade. This chapter ends with the discussion on capability studies and performance evaluation of a process.
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Muralidharan, K. (2015). Measure Phase. In: Six Sigma for Organizational Excellence. Springer, New Delhi. https://doi.org/10.1007/978-81-322-2325-2_8
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DOI: https://doi.org/10.1007/978-81-322-2325-2_8
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