Table 2 Costs of poor quality.
Costs of poor quality | Controllable poor-quality cost | Prevention cost | Quality planning (for test, inspections, audits, process control) Education and training Performing capability analyses Conducting design reviews |
Appraisal cost | Test and inspection Supplier acceptance sampling Auditing processes | ||
Resultant poor-quality cost | Internal error cost | In-process scrap and rework Troubleshooting and repairing Design changes Additional inventory required to support poor process yields and rejected lots Reinspection and retest of reworked items Downgrading | |
External error cost | Sales returns and allowances Service level agreement penalties Complaint handling Field service labor and parts costs incurred due to warranty obligations |