What is the difference between Defect and Failure?

Define Defect?

Defect is a variance from a normal flow

When a defect reaches the end customer it is termed as failure and if the defect is

detected internally and resolved it’s called as a defect.

There are mainly three categories of defect:-

Wrong: - The requirements have been implemented incorrectly. This defect is a variance

from the given specification.

Missing: - There is a requirement given by the customer and is not done. This is a

variance from specification, an indication that the specification was not implemented, or

a requirement of the customer was noted properly.

Extra: - A requirement incorporated into the product that was not given by the end

customer. This is always a variance from specifications, but may be an attribute desired

by the user of the product. However, it is considered a defect because it’s a variance from

the existing requirements.

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