external failure
📙 CTAL-TM
Official ISTQB Definition
A failure that occurs during the regular operation of a system after its delivery to the end users.
3 Ways to Think About It
The Quick Take
Defects found after release - the most expensive kind.
Look Closer
Quality problems discovered by customers in production.
The Bottom Line
Failures in the field that damage reputation and require urgent fixes.
Practice this term with quizzes and arcade games
Study with Lexicon →