Boundary Value Analysis

• Based on experience / heuristics

-Testing boundary conditions of equivalence classes is more effective

• Choose input boundary values as equivalence classes representatives
• Choose inputs that invoke output boundary values

Examples:

(0, 10] ⇒ validate using 0, 1, 2, 9, 10, 11

Read up to 5 elements ⇒ validate reading 0, 1, 4, 5, 6 elements