Quality filter mapping is part of the value stream mappingGlobal Logistics and Distribution Planning: Strategies for Management By C. Donald J. Waters toolkit and is used to analyse processes/functions with respect to quality. The results of a quality filter map shows how much waste is being generated within an organisation at each stage of the process.
Three types of qualityBest Practice Procurement: Public and Private Section Perspectives: Andrew Erridge, Ruth Fee, John Mcllroy are measured as part of the model:
Product quality: Defective item provided to customer Defect quality: Defective item found prior to receipt by customer Service quality: Defects that affect the ability of the supplier to provide the service or product to the customer
Quality failures/defects are represented as a ratio (typically parts per million). Results of quality filter mapping are commonly used to feed into continuous improvement plans.
A revised map is then generated after implementation of improvement plans to measure the result of improvements.
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