Cost of quality includes all codes incurred in the pursuit of quality or in performing quality related activities. Cost of quality studies are conducted to provide a base line for the current cost of quality, to identify opportunities for reducing the cost of quality, and to provide a normalized basis of comparison. The basis of normalization is usually money. Once we have normalized quality costs on a money basis, we have the necessary data to evaluate where the opportunities lie to improve our process further more we can evaluate the effect of changes in money based terms.
QC may be divided into cost associated with
Prevention costs include
- Quality Planning
- Formal Technical Review
- Test Equipment
Appraisal costs includes activity to gain insight into product condition the "First time through" each process.
Examples for appraisal costs includes
- In process and inter process inspection
- Equipment calibration and maintenance
Failure Costs are costs that would disappear if no defects appeared before shipping a product to customer’s failure costs may be subdivided into internal and external failure costs.
Internal failure costs are costs incurred when we detect an error in our product prior to shipment.
Internal failure costs includes
Failure Mode Analyses
External failure costs are the cost associated with defects found after the product has been shipped to the customer.
Examples of external failure costs are
1. Complaint Resolution
2. Product return and replacement
3. Helpline support
4. Warranty work
TEST CASE DESIGN
TEST CASE DESIGN TWO
DESIGN OF TEST CASES PART THREE
TEST CASE DESIGN PART THREE
TEST CASE DESIGN PART FOUR
TEST CASE DESIGN PART FIVE
TEST CASE DESIGN PART SIX
TEST CASE DESIGN PART SEVEN
TEST CASE DESIGN PART EIGHT
TEST CASE DESIGN PART NINE
REVIEWS AND APPROVAL OF TEST CASES
WRITING SOFTWARE TEST CASES PART ONE
WRITING SOFTWARE TEST CASES PART TWO
WRITING SOFTWARE TEST CASES PART THREE
WRITING SOFTWARE TEST CASES PART FOUR