Quality filter mapping

Quality Filter Mapping is part of the Value Stream Mapping 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 Quality are measured as part of the model:

1. Product Quality – Defective Item provided to customer
2. Defect Quality – Defective item found prior to receipt by customer
3. 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.