This International Standard describes Failure Mode and Effects Analysis (FMEA) and Failure Mode, Effects and Criticality Analysis (FMECA), and gives guidance as to how they may be applied to achieve various objectives by − providing the procedural steps necessary to perform an analysis; − identifying appropriate terms, assumptions, criticality measures, failure modes; − defining basic principles; − providing examples of the necessary worksheets or other tabular forms. All the general qualitative considerations presented for FMEA will apply to FMECA, since the latter is an extension of the other.