Which practice area is focused on managing performance and measurement in CMMI?

The practice area that focuses on managing performance and measurement in CMMI is "Improving Performance." This area is integral to the CMMI framework as it emphasizes the continuous enhancement of processes based on measured performance data. Organizations are encouraged to establish performance baselines and use this data to identify areas for improvement.

By concentrating on improving performance, organizations can not only track their progress but also make informed decisions that lead to more effective and efficient processes. This concept supports the idea that measurement is crucial for understanding how well processes are functioning and for identifying opportunities for advancement. Hence, it serves as a foundation for implementing systematic and data-driven improvements in the organization's processes.

The other options refer to different aspects of process management within CMMI. For instance, Process Asset Development focuses on creating and maintaining process assets, Configuration Management is about overseeing changes to maintain integrity, and Requirements Management deals with identifying and managing requirements throughout the project lifecycle. While these are all essential components of process maturity, none of them specifically address the aspect of managing performance and measurement as comprehensively as the Improving Performance area does.