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Inability to achieve a defined Performance threshold (response given loading). "Catastrophic" Failure describes the situation where the Consequences are immediate and severe, whereas "prognostic" Failure describes the situation where the Consequences only grow to a significant level when additional loading has been applied and/or time has elapsed.
Acknowledgements: This Glossary is modified from Gouldby and Samuels, 2005, Language of risk – project definitions. FLOODsite Report T34/04/01