"In STLC, defect severity is the degree of impact that a defect has on the application. It depends on the importance of tested function and ensures whether it is meeting the defined requirements of the client or not. To understand the significance of Defect Severity, along with its features, types, reasons, etc.
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A software defect is classified into two categories by software testers, which helps them define and describe the bug/defect from different point of views. These two categories, Bug Severity & Bug Priority, are metric tools associated with the bugs and are used to determine the gravity of the defect as well as to identify the defect that needs to be tested before others