User Experience
Edge Case
Plain English
Unusual situations that still need handling.
Definition
An edge case is a rare or extreme scenario that falls outside typical glossaryUser BehaviourUser behaviour refers to how users interact with a product, including actions, patterns, and decision-making processes.Open glossary term.
In practice
Considered during design and development to ensure robustness.
The reality
Often ignored until they cause issues in production.
FAQ
Common questions
A few practical answers to the questions that usually come up around this term.
What is an edge case?
A rare or extreme scenario.
Why are edge cases important?
They prevent unexpected failures.
When should they be considered?
During design and development.
What is a common mistake?
Ignoring them.
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