Which category of Standard Pega process reports monitors and analyzes the performance of ongoing cases?

The category of Standard Pega process reports focused on monitoring and analyzing the performance of ongoing cases is "Monitor Processes." This report category is designed to provide insights into the status and efficiency of processes as they progress in real-time. By utilizing these reports, practitioners can identify bottlenecks, delays, and overall performance metrics associated with running cases. Monitoring is crucial for ensuring that cases are handled efficiently and that any issues can be addressed promptly.

In contrast, the other options represent different aspects of case management. "Open Cases" mainly provides a view of all cases that are currently active and does not delve into performance metrics. "Analyze Performance" typically involves broader assessments of metrics over time rather than monitoring live, ongoing processes. Meanwhile, "Step Performance" focuses specifically on the efficiency of individual steps within a process rather than the overall performance of the entire case flow. Therefore, "Monitor Processes" is the most appropriate choice for tracking and analyzing the performance of ongoing cases.