Which of these processes does Service Operation engage with during Service Transition?

In the context of ITIL, Service Operation collaborates closely with Change Management during the Service Transition phase. This relationship is crucial because Change Management is responsible for controlling the lifecycle of changes, ensuring that beneficial changes are made with minimal disruption to the services currently being operated.

Service Operation plays a vital role in this collaboration, as it involves ensuring that the changes proposed are practical, feasible, and can be integrated smoothly into the existing service delivery without negatively impacting service quality. By engaging with Change Management, Service Operation helps to assess the potential risks, impacts, and operational readiness of new or changed services, which is central to successful service delivery.

While other processes, such as Service Level Management, Service Portfolio Management, and Capacity Management, are important in the broader framework of ITIL, they do not engage in the same direct manner with Service Operation during Service Transition as Change Management does. Service Level Management focuses on the agreements and service levels, Service Portfolio Management deals with the overall management of the service lifecycle, and Capacity Management is concerned with ensuring that the service capacity meets the demand, but none of these interact with Service Operation during the transition of services as closely as Change Management does.