COMM 225 Chapter 10: Statistical Quality Control (Production and Operations Management - Second Custom Ed for Concordia)
9 Dec 2016
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Best companies stress designing quality into process, thereby reducing inspection need. Least progressive rely on receiving and shipping inspections. Most companies occupy middle ground involving some inspection and process control. Statistical quality control - stat. ways/sampling in monitoring/testing good/service quality. Acceptance sampling : relies primarily on inspection of previously produced items. Inspection - appraisal of good/service against standard. Dene, in sucient detail, what is to be controlled. Dierent characteristics may require dierent approaches for control purposes. Only characteristics that can be measured can be controlled. Important to consider how measurement will be attained must be standard to evaluate measurement, relating to quality level being sought. Determine a quality control point: at process beginning, at process end, at the operation where characteristic of interest to customers is rst determined. In service sector, inspection points include where personnel and customer interface (ex. service counter) and parts of facility customer sees. Can range from no inspection to inspection of each item.
