QA

Separate quality assurance from testing, judge results with test oracles, think like a tester with the five what-ifs, test the riskiest things first, and choose between black, white and gray box approaches.

1. What Is Quality Assurance?12 min
2. Test Oracles — Knowing the Right Answer12 min
3. The QA Mindset12 min
4. Test Prioritization — Risk First14 min
5. Black, White and Gray Box Testing15 min

See where testing sits in Waterfall and the V-Model, how Spiral loops attack risk, how testers work inside Scrum sprints, and what Kanban, XP and SAFe change for quality.

1. Waterfall and the V-Model14 min
2. The Spiral Model12 min
3. Agile and Scrum15 min
4. Kanban, XP and SAFe15 min

Separate functional from non-functional testing, test units and their joins with mocks, gate builds with smoke, sanity and regression checks, measure performance under load and stress, and learn from exploratory testing and user acceptance.

1. Functional and Non-Functional Testing12 min
2. Unit, Integration and Mocking15 min
3. Smoke, Sanity and Regression Testing14 min
4. Performance, Load and Stress Testing14 min
5. Exploratory Testing and UAT15 min

Separate verification from validation, write a test plan with clear exit criteria, design test cases with partitions and boundary values, write tests first with TDD, BDD and ATDD, and trace defects to their root cause.

1. Verification and Validation12 min
2. Test Planning15 min
3. Test Cases, Scenarios and Boundaries16 min
4. TDD, BDD and ATDD15 min
5. Root Cause Analysis15 min