Which process monitors and improves the performance of the service transition stage of the service lifecycle?

Transition Planning and Support is the ITIL process that plans, coordinates, monitors, and improves the overall performance of the Service Transition stage. It provides governance and visibility across all transition activities to ensure they are conducted efficiently. This process tracks progress against plans and recommends corrective actions to optimize the transition lifecycle.

Design Coordination is a Service Design process responsible for coordinating design activities, not for monitoring or improving the Service Transition stage.

Change Management controls the lifecycle of individual changes but does not hold overall responsibility for monitoring and improving the entire Service Transition stage.

Service Transition Management is not a recognized ITIL process name; the process that performs this monitoring and improvement role is specifically called Transition Planning and Support.