1. INTRODUCTION
1.1 Problem
1.2 Contribution

2. SOFTWARE QUALITY ECONOMICS
2.1 Software Quality Costs
2.2 An Analytical Model
2.3 Practical Model

3. EMPIRICAL KNOWLEDGE
3.1 General
3.2 Dynamic Testing
3.3 Review and Inspection
3.4 Static Analysis Tools
3.5 Defects

4. DISCUSSION