What happens if a failure is found during system testing?

When a failure is identified during system testing, it is essential to understand the implications this may have on the project. The correct response highlights that fixing defects at this stage of development is generally costly and more complex if not addressed promptly. This is because issues that are detected in the testing phase may have cascading effects throughout the system, leading to further complications down the line. Each stage of development builds upon the previous one, meaning that early defects can lead to additional rework as other components are tested or integrated, increasing the time and cost required to correct them.

Moreover, when defects are found later in the development cycle or after deployment, they may require revisiting earlier phases of the project, including design and development, which can necessitate revising documentation, retraining staff, or even redoing tests. This creates a ripple effect that can derail timelines and escalate costs significantly. Correcting failures during early stages, ideally in the unit testing phase, is less expensive as it can often be resolved simply by modifying the code.

In contrast, the other options do not accurately reflect the realities of project management in the context of software development. They understate the impact that failures have on timelines and resources, overlook typical industry practices regarding defect resolution, and misrepresent the