I tend to distinguish "Working as intended" and "Working as implemented." Working as intended: the system works in a basic average-observer human sense Workin

I tend to distinguish "Working as intended" and "Working as implemented." Working as intended: the system works in a basic average-observer human sense Working as implemented: there were no errors in implementation, and the system is performing within the tolerances of that implementation (but the implementation itself may be flawed, or may be to a design that violates average human expectations).