What is a UX Corner case?

A corner case is when multiple parameters or edge cases meet. That's all. For example when your interface breaks only on right-to-left sites, on leap days, and if you have more than 12 tasks in your agenda.

1. What does corner case mean?
2. What is corner test cases?
3. What are edge cases in UX?

What does corner case mean?

Noun. corner case (plural corner cases) (chiefly engineering) A problem or situation that occurs only when two or more operating parameters are at extreme values, or when two or more unusual operating circumstances happen to coincide.

What is corner test cases?

In engineering, a corner case (or pathological case) involves a problem or situation that occurs only outside normal operating parameters—specifically one that manifests itself when multiple environmental variables or conditions are simultaneously at extreme levels, even though each parameter is within the specified ...

What are edge cases in UX?

An edge case is a scenario in which a user need is deemed less likely to be necessary, and because it is less likely to occur, it is often neglected. This, in theory, makes sense though; if you imagine an effort vs impact matrix, an edge case would place in a low impact quadrant.