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http://qatestlab.com/ Quality costs are the costs spent on preventing, finding and fixing incorrect work. These costs take up 20-30% of sales. But you can decrease or completely avoid the consumptions. One of the primary duties of a Software Tester is the reduction of the total cost of quality related with a product.

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quality cost analysis main types of costs associated with software products

Office in Ukraine

Phone: +38(044)501-55-38

E-mail:contact (at) qa-testlab.com

Address:154a, Borschagivska str., Kiev, Ukraine

http://qatestlab.com/

Quality Cost Analysis:Main types of Costs Associated with Software Products

quality cost analysis
Quality Cost Analysis

Quality costs are the costs spent on preventing, finding and fixing incorrect work. These costs take up 20-30% of sales. But you can decrease or completely avoid the consumptions. One of the primary duties of a Software Tester is the reduction of the total cost of quality related with a product.

Office in Ukraine

Phone: +38(044)501-55-38

E-mail:contact (at) qa-testlab.com

Address:154a, Borschagivska str., Kiev, Ukraine

http://qatestlab.com/

types of costs associated with software products
Types of costs, associated with software products:

Prevention Costs

1

Appraisal Costs

2

Failure Costs

3

Total Cost of Quality

4

Office in Ukraine

Phone: +38(044)501-55-38

E-mail:contact (at) qa-testlab.com

Address:154a, Borschagivska str., Kiev, Ukraine

http://qatestlab.com/

prevention costs
Prevention Costs

Costs of preventing coding and design bugs, errors in the user manuals, bad documentation or inapplicable code. Most of the prevention costs are wasted from the budget of the programming, design, and marketing group but not Testing.

The most widespread examples of quality costs associated with software products are:

training of the staff

requirements and usability analysis

early prototyping

fault-tolerant design

defensive programming

accurate specification and internal documentation

evaluation of the reliability of the product.

Office in Ukraine

Phone: +38(044)501-55-38

E-mail:contact (at) qa-testlab.com

Address:154a, Borschagivska str., Kiev, Ukraine

http://qatestlab.com/

appraisal costs
Appraisal Costs

Costs which are aimed for design review, code inspection, test automation, pre-release of customers, training testers and glass box, black box, beta and usability testing.

Design reviews are used for averting and evaluation. When you're looking for errors in the design, you're doing an evaluation and when you're looking for ways to strengthen the design, you are doing averting.

Office in Ukraine

Phone: +38(044)501-55-38

E-mail:contact (at) qa-testlab.com

Address:154a, Borschagivska str., Kiev, Ukraine

http://qatestlab.com/

slide6

Office in Ukraine

Phone: +38(044)501-55-38

E-mail:contact (at) qa-testlab.com

Address:154a, Borschagivska str., Kiev, Ukraine

http://qatestlab.com/

Failure Costs

Internal Failure Costs

External Failure Costs

Failure costs emerged before providing products to the customers. If errors block the work of somebody in the company, the costs of the wasted time, the missed points, and the overtime to get back onto the original scheme are all internal failure costs.

Failure costs emerge after the supplying of product to the customer.

internal failure costs
Internal Failure Costs
  • There are such Internal Failure Costs:
  • bug fixes
  • regression testing
  • wasted user
  • testers and marketers time
  • wasted advertisements
  • direct and potential costs of a late dispatch.

Office in Ukraine

Phone: +38(044)501-55-38

E-mail:contact (at) qa-testlab.com

Address:154a, Borschagivska str., Kiev, Ukraine

http://qatestlab.com/

external failure costs
External Failure Costs
  • They are costs of:
  • preparation of support documentation
  • technical calls
  • investigation of customer complaints
  • refunds and recalls
  • coding and testing of interim releases
  • dispatch of updated product
  • supporting multiple versions
  • discounts to stimulate resellers to keep selling the product
  • warranty and liability costs
  • government investigations and others.

Office in Ukraine

Phone: +38(044)501-55-38

E-mail:contact (at) qa-testlab.com

Address:154a, Borschagivska str., Kiev, Ukraine

http://qatestlab.com/

total cost of quality
Total Cost of Quality

It is calculated as the sum of all costs:

Prevention + Appraisal + Internal Failure + External Failure.

Office in Ukraine

Phone: +38(044)501-55-38

E-mail:contact (at) qa-testlab.com

Address:154a, Borschagivska str., Kiev, Ukraine

http://qatestlab.com/

slide10

Office in Ukraine

Phone: +38(044)501-55-38

E-mail:contact (at) qa-testlab.com

Address:154a, Borschagivska str., Kiev, Ukraine

http://qatestlab.com/

Thank You !