8. TYPES OF COST Technical support, defect reporting and tracking, field updates, loss of future sales. Costs associated with fixing defects found after release. External Failure Repair, retesting, updating documentation. Costs associated with fixing defects found prior to release. Internal Failure Inspections, testing, audits, quality control. Costs associated with analyzing and testing the product to ensure it conforms to specifications. Appraisal Training, early reviews, quality planning, tools, process improvement initiatives. Costs associated with preventing defects. Prevention Example Definition Category