Course → 3 · Professional QA engineering → Test Design Techniques
3 · Professional QA engineering
Pairwise and exploratory testing
18 min · Module 16
Pairwise (all-pairs) covers every pair of parameter values—strong ROI when full combinatorics explode.
Exploratory testing uses charters, time boxes, and note-taking—not random clicking. Automate what stabilizes; explore what is new or judgment-heavy.
Example / notes
# Charter (45 min): "Release 1.1.0-rc search + priority labels"
# Heuristics: vary priority, empty description, unique subjects, deploy switches
# Notes → defects/reports with versionPractice in Lab: /lab/app/
Modules in this track
- 15. QA Foundations — Strategy & Planning
- 16. Test Design Techniques
- 17. API & Contract Testing
- 18. Performance Testing Basics
- 19. Security Testing Basics
- 20. Accessibility Testing
- 21. Mobile Testing
- 22. CI/CD, Quality Gates & Environments
- 23. Test Data, Environments & Observability
- 24. Soft Skills — Stakeholders, Mentoring, Metrics
- 25. Career & Process — Agile, Compliance, Senior Bar