The 5 books go hand-in-hand with each other and they support each other through the life cycle.
The ITIL lifecycle is a recursive circle for each process and even for each system until the system has been retired.
Management can also use the service provider to make decisions on which ideas are viable and valuable to be developed into a service.
The service portfolio forms part of the Service Knowledge Management System.
The overlap forms part of the service transition of the lifecycle.
The Service Transition includes the management and co-ordination of processes, systems and functions to package, build, test and deploy a release into production.
- Manage the information in the service catalogue
- It ensures that the service catalogue is correct and updated with all the latest detail, status and interfaces and dependencies of all live or preparing-for-live systems are reflecting in it.
- It also makes sure that the organisation makes the service catalogue available to the necessary authorised customers and users.
- It also makes sure that the service catalogue supports the changing requirements of all processes.