Software_Testing_Presentation.getting into it
- 1. Software Testing Overview Comprehensive Overview of Principles, Models, and Life Cycle
- 2. Introduction to Software Testing • - Verification: Ensures software implements specific functions correctly. • - Validation: Ensures software meets customer requirements. • - Main Goal: Identify and fix bugs to ensure bug-free software.
- 3. Goals of Software Testing • Immediate Goals: • - Bug Discovery • - Bug Prevention • Long-term Goals: • - Quality Improvement • - Customer Satisfaction • - Reliability and Risk Management • Post-Implementation Goals: • - Reduce Maintenance Costs • - Improve Testing Processes
- 4. Immediate Goals • - Bug Discovery: Identifying errors early in the SDLC. • - Bug Prevention: Learning from detected issues to prevent recurrence.
- 5. Long-Term Goals • - Quality: Enhancing correctness, integrity, efficiency, and reliability. • - Customer Satisfaction: Ensuring client expectations are met. • - Reliability: Building confidence in software quality. • - Risk Management: Minimizing product failure risks.
- 6. Post-Implementation Goals • - Reduce Maintenance Costs: Fixing errors post-release is expensive. • - Improve Testing Process: Analyzing bug history to refine future strategies.
- 7. Testing Process Models • - Traditional Waterfall Model • - Agile Development Model • - V Model • - Spiral Model
- 8. Traditional Waterfall Model • - Sequential model with pre-defined stages. • - Testing occurs after development. • - Disadvantages: • • Late testing stage. • • No client feedback during development. • • High cost of fixing errors.
- 9. Agile Development Model • - Iterative approach focusing on smaller tasks. • - Continuous integration and defect reduction. • - Advantages: • • Frequent deliveries. • • Constant client communication. • • Flexibility for changes.
- 10. V Model • - Development and testing run parallel. • - Phases: • • Unit Testing • • Integration Testing • • System Testing • • Acceptance Testing • - Time-efficient with pre-planning.
- 11. Spiral Model • - Combines iterative and risk-driven approaches. • - Focus on risk analysis. • - Suitable for complex projects. • - Requires expert risk assessment.
- 12. Importance of STLC • - Ensures quality throughout development. • - Identifies and resolves issues early. • - Saves time and cost in later stages.
- 14. STLC Phases • 1. Requirement Analysis • 2. Test Planning • 3. Test Case Development • 4. Test Environment Setup • 5. Test Execution • 6. Test Cycle Closure
- 16. Principles of Software Testing • - Testing shows presence of defects. • - Exhaustive testing is not possible. • - Early testing is cost-effective. • - Defect clustering follows the 80/20 rule. • - Pesticide paradox: Update test cases. • - Context-dependent testing. • - Absence of errors fallacy.
- 17. Conclusion • - Software testing ensures quality and reliability. • - Adopting suitable models and principles enhances outcomes. • - Effective testing saves cost, time, and ensures customer satisfaction.