LEXICON Open App →
HomeGlossary › non-functional testing

non-functional testing

📙 CTAL-TM 📗 CTFL

Official ISTQB Definition

Testing performed to evaluate that a component or system complies with non-functional requirements.

3 Ways to Think About It

💡
The Quick Take

Testing HOW WELL the software works — speed, security, usability, reliability.

🔍
Look Closer

Checking qualities beyond just 'does it work' — is it fast enough? Secure enough?

🎯
The Bottom Line

Testing the 'ilities': performance, reliability, usability, security, scalability.

Practice this term with quizzes and arcade games

Study with Lexicon →
← neuron coverageAll Termsnon-repudiation →