1.2. Why is Testing Necessary?

Rigorous testing of components and systems, and their associated documentation, can help reduce the risk of failures occurring during operation. When defects are detected, and subsequently fixed, this contributes to the quality of the components or systems. In addition, software testing may also be required to meet contractual or legal requirements or industry-specific standards.

1.2.1 Testing’s Contributions to Success1.2.2 Quality Assurance and Testing1.2.3 Errors, Defects, and Failures1.2.4 Defects, Root Causes and Effects