Name one method CMMI suggests for process improvement.

CMMI suggests root cause analysis of process failures as a method for process improvement because it focuses on identifying the underlying reasons for issues affecting process performance. Root cause analysis allows organizations to systematically investigate problems and determine their fundamental causes rather than merely addressing symptoms. This approach leads to more effective and sustainable solutions by enabling teams to implement changes that prevent recurrence, thus enhancing overall process quality and efficiency.

In contrast to other methods, such as trial and error experimentation or guessing, which lack a structured approach and may lead to inconsistent results, root cause analysis provides a systematic framework. This method encourages a thorough investigation and data-driven decision-making, ensuring that improvements are based on solid evidence rather than assumptions. Benchmarking against competitors, while valuable for understanding relative performance, does not directly address internal process issues that need to be resolved for sustainable improvement. Therefore, root cause analysis stands out as a focused and effective technique within the CMMI framework for fostering continuous improvement in processes.