IT service management is often equated with the Information Technology Infrastructure Library (ITIL), even though there are a variety of standards and frameworks contributing to the overall ITSM discipline. Whereas version 2 was process-oriented (split into two groups: service support and service delivery), version 3 is service-orientated. Since ITIL V3, the various ITIL processes are grouped into five stages of the service lifecycle: service strategy, service design, service transition, service operation and continual service improvement.