Various Types of Software Testing Overview of Functional, Non-Functional, Security, and Specialized Testing
1. Functional Testing - Focuses on 'what the system does' - Unit Testing: Test individual components (e.g., login function) - Integration Testing: Test interaction between modules - System Testing: Validate entire system against requirements - Acceptance Testing (UAT): End-users confirm business needs are met 📌 Ensures correctness of features before release
2. Non-Functional Testing - Focuses on 'how the system performs' - Performance Testing: Check speed & response time - Load Testing: Behavior under expected load - Stress Testing: Push beyond limits to find breaking points - Scalability Testing: System growth capacity - Usability Testing: User experience & ease of use 📌 Ensures quality beyond just functionality
3. Regression & Maintenance Testing - Regression Testing: Ensures old features still work after changes - Sanity Testing: Quick checks after bug fixes - Smoke Testing: Basic feature check before detailed testing 📌 Prevents new updates from breaking existing functionality
4. Security Testing - Ensures software is safe from threats - Penetration Testing: Ethical hacking to find vulnerabilities - Vulnerability Scanning: Automated tools scan weaknesses - Compliance Testing: Adherence to standards (GDPR, PCI-DSS) 📌 Protects user data and builds trust
5. Compatibility & Specialized Testing - Compatibility Testing: Works across devices, browsers, OS - Recovery Testing: System recovery after crashes/power failures - Localization/Internationalization: Language, currency, date formats 📌 Ensures software works everywhere and for everyone
Summary - Functional Testing: Does it work correctly? - Non-Functional Testing: Performance, reliability, usability - Regression/Maintenance Testing: Stability after changes - Security Testing: Safe from vulnerabilities - Specialized Testing: Compatibility, recovery, global readiness