A minor defect can wait to be resolved for some time, or it can be tackled in the next release of the application. Minor/Moderate: Any feature that is implemented and working differently from the expected behavior but its impacts are tolerable and would not harm the application too much, and the overall functionality of the application is not affected.For example, while doing Online shopping, the user is unable to add products to the cart using Add to Cart feature. If any significant feature implemented in an application is working completely differently from it’s expected behavior, then the defect for this will be considered as Major. Major: A defect is considered major if the Major/ important feature of an application is not working as expected or intended to perform.Considering the UI of the application, if the Login Screen of the application hangs and does not allow the user to log in and proceed further. Critical: A defect that hampers the entire application and blocks the user from proceeding or using the application because it is considered critical.
Severity is categorized in different categories depending on the impact of the defect on the application: