Equivalence Partitioning — a practical guide to equivalence partitioning with clear examples you can reuse in real projects.
QA Testing Tutorial Series (42/112). Prefer one article? Read the complete QA testing tutorial.
Short description
EP reduces cases while keeping coverage of behavior classes.
EP example
Valid ages 18–60 → one value (e.g. 30)
Invalid <18 → one value
Invalid >60 → one value