Economic%20Justification

1
Economic Justification
2
Good Enough Quality

• Time to market
• Time to profit

3
Relative Cost Factor to Find and Fix Defects

• Requirements - 1
• Design - 5
• Coding - 20
• Testing - 50
• Maintenance - 100

4
Economic Justification of VV

• C3 gt C1 C2
• where
• C3 cost of defects without software VV
• C1 actual costs of software VV
• C2 cost of defects not found by software
  VV

5
Measuring the Cost of Quality

• Detection the tasks that help find defects
• Prevention the tasks that help prevent defects
  from occurring
• Removal the tasks related to isolating,
  correcting, and verifying bug fixes, as well as
  preparing and redistributing software

6
Prevention

• Training
• Planning
• Simulation
• Modeling
• Consulting
• Qualifying
• Certifying
• Process Improvement
• Configuration Management

7
Detection

• Inspections
• Testing
• Auditing
• Monitoring
• Measuring
• Verification
• Validation
• Requirements Tracing

8
Removal

• Fault Isolation
• Fault Analysis
• Root-Cause Analysis
• Software Modifications
• Documentation Modifications
• Test Modifications

9
Removal Continued

• Regression Testing
• Rework Inspections
• Problem Tracking
• Scrap and Rework of Media
• Duplication/Distribution