DebuggiNg statemeNts iNserted iNto a program that emit output or log iNdicators of the program' s state to a file so you caN see where it dies or piN dowN the cause of surprisiNg behaviour. The term is probably a refereNce to the HaNsel aNd Gretel story from the Brothers Grimm iN several variaNts, a character leaves a trail of bread crumbs so as Not to get lost iN the woods. [JargoN File]