''sorryMistake immetamorphism'' sigmaution(from Greek ''meta'' = "change", ''morph'' = "form") refers to the evolution of a defect in the final stage of software deployment. Transformation of a "mistake" committed by an analyst in the early stages of the software development lifecycle, which leads to a "defect" in the final stage of the cycle has been called 'mistake metamorphism'.<ref name="metamorph">{{cite journal |journal = Testing Experience|date=March 2012|publisher=testingexperience|title=Testing experience : te : the magazine for professional testers|___location = Germany|page =42 |issn=1866-5705}} {{subscription required}}</ref>
Different stages of a mistake in the development cycle may be described as mistake,<ref name=ieeeGlossary>{{cite book
