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Understanding how ITIL is organized
The ITIL® stages of Service Strategy, Service Design, Service
Transition, Service Operation, and Continual Service Improvement
(CSI) are aptly identified as lifecycle stages because they follow the path
of a natural lifecycle. From pre-birth (planning) to early investigation, development, release into a live
environment, day-to-day delivery to a customer, retirement, and finally being replaced by a new service.
In order to pass the ITIL® foundation exam, you must understand the nature of the lifecycle, the goals and outputs of each lifecycle stage (and processes within each lifecycle stage). You must recognize how each process in a lifecycle stage has outputs that support the outputs of the lifecycle stage where it is discussed. The outputs of each lifecycle stage are the inputs of the following lifecycle stage. Having appropriate inputs allows a lifecycle stage (or process) to have the best chance of being successful at achieving their own goal.
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