Os 5 ciclos de vida do ITIL V3 são:

a) Service Level Management, Capacity Management, Availability Management, Service Continuity Management e Financial Management for IT Services.
b) Business Perspective, Service Strategy, Service Design, Service Delivery e Service Support.
c) Service Desk, Incident Management, Problem Management, Change Management e Configuration Management.
d) Business Perspective, Planning to Implement Service Management, Security Management, Application Management e ICT Infrastructure Management.
e) Service Strategy, Service Design, Service Transition, Service Operations e Continual Service Improvement.