ISBN : 978-81-963532-2-3 (E-Book) Classificationofsoftwarefailures Apossibleclassificationoffailuresofsoftwareproductsintofivedifferenttypesisasfollows: Transient-Transientfailuresoccuronlyforcertaininputvalueswhileinvokingafunctionofthe system. Permanent-Permanentfailuresoccurforallinputvalueswhileinvokingafunctionofthesystem. RecoverableWhenrecoverablefailuresoccur,thesystemrecoverswithorwithoutoperatorintervention. Unrecoverable-Inunrecoverable failures,thesystemmayneedtobe restarted. Cosmetic- These classes of failures cause only minor irritations, and do not lead toincorrect results. An example of a cosmetic failure is the case where the mouse button hasto be clicked twice instead of once to invoke a given function through the graphical userinterface. 125 Software Engineering Keerthana P, Manasa KN, Ganga D Bengal
131 Publizr Home