Failure

Concepts

• A failure is the inability of a component or a system to fulfill its required functions within specified performance requirements. <bib>vincenzi-etal:2007</bib>, Incorrect statement

• A failure is an external, incorrect behaviour with respect to the requirements or other description of the expected behaviour. <bib>ammann-offutt:2008</bib>, <bib>delamaro:slides:2009</bib>

Facts

• A failure is the consequence of the propagation of an error. <bib>vicenzi-etal:slides:2007</bib>

• A failure occurs when a faulty piece of code is executed leading to an incorrect state that propagates to the program's output. <bib>mathur:2008</bib>

• It is often very difficult to relate a failure to the associated fault. <bib>ammann-offutt:2008</bib>