SOFTWARE QUALITY ASSURANCE PART TWO

Cost of Quality

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

  1. Prevention
  2. Appraisal
  3. Failure

Prevention costs include

  1. Quality Planning
  2. Formal Technical Review
  3. Test Equipment
  4. Training

Appraisal costs includes activity to gain insight into product condition the "First time through" each process.

Examples for appraisal costs includes

  1. In process and inter process inspection
  2. Equipment calibration and maintenance
  3. Testing

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

· Rework

· Repair

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

RELATED POST

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

No comments:

Post a Comment