Quality filter mapping is part of the value stream mapping1 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 quality2 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.
References
References
- Global Logistics and Distribution Planning: Strategies for Management By C. Donald J. Waters ISBN 0-7494-3930-0
- Best Practice Procurement: Public and Private Section Perspectives: Andrew Erridge, Ruth Fee, John Mcllroy ISBN 0-566-08366-3