Heisenbug is a term used in software programming to describe a
computer bug that disappears or alters its characteristics when it is researched. A common example are bugs that occur in a release-mode compile of a program but do not occur when researched under debug-mode, or some bugs caused by a
race condition. The name is a pun on the physics term "Heisenberg
Uncertainty Principle", which is popularly believed to refer to the way observers affect the observed in
quantum mechanics.
- See also: Bohr bug[?], mandelbug[?], schroedinbug[?]