Lesson 3: Test Design Techniques and Test Case Development

This lesson develops practical understanding of test design techniques and test case development within the ISTQB Certified Tester Foundation Level (CTFL) Training. It connects core concepts with realistic testing and quality-engineering decisions.

Learners examine methods, evidence, risks, stakeholder expectations, and implementation considerations before applying the ideas in a focused activity.

Topics Covered

• Equivalence partitioning for valid and invalid input classes
• Boundary value analysis for numeric and ordered domains
• Decision table testing for rules and combinations
• State transition testing for events, states, and sequences
• Statement and branch coverage concepts
• Error guessing, exploratory testing, and checklist-based testing
• Selecting techniques based on risk, level, objective, and information

Practical Activity

Apply the lesson concepts to a realistic ISTQB Certified Tester Foundation Level (CTFL) scenario and document the test approach, evidence, risks, and recommended next actions.

Lesson Outcome

Learners can explain and apply test design techniques and test case development using structured, risk-aware, and evidence-based testing decisions.