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Specialization and coordination across the lifecycle

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Specialization and coordination are necessary in the lifecycle approach. Feedback and control between the function s and processes within and across the elements of the lifecycle make this possible. The dominant pattern in the lifecycle is the sequential progress starting from Service Strategy (SS) through Service Delivery (SD)– Service Transition (ST)– Service Operation (SO) and back to SS through Continual Service Improvement (CSI). That, however, is not the only pattern of action. Every element of the lifecycle provides points for feedback and control.

The combination of multiple perspectives allows greater flexibility and control across environment s and situations. The lifecycle approach mimics the reality of most organizations where effective management requires the use of multiple control perspective s. Those responsible for the design, development and improvement of processes for Service Management can adopt a process-based control perspective. For those responsible for managing agreement s, contract s and services may be better served by a lifecycle-based control perspective with distinct phases. Both these control perspectives benefit from system s thinking. Each control perspective can reveal patterns that may not be apparent from the other.

Service Transition fundamentals

Purpose, goals, and objectives

The purpose of Service Transition is to:

The goals of Service Transition are to:

The objective s are to:

Scope

The scope of Service Transition includes the management and coordination of the processes, system s and function s to package, build, test and deploy a release into production and establish the service specified in the customer and stakeholder requirements.

The scope of the Service Transition lifecycle stage is shown in Figure 2.3. Service Transition activities are shown in the white boxes. The black boxes represent activities in the other ITIL core publications.

There may be situations when some activities do not apply to a particular transition. For example the transfer of a set of services from one organization to another may not involve release planning, build, test and acceptance.

Figure 2.3 The scope of Service Transition

The following lifecycle processes in this publication support all lifecycle stages:

Service Transition uses all the processes described in the other ITIL publications as it is responsible for testing these processes, either as part of a new or changed service or as part of testing changes to the Service Management processes. Service level management is important to ensure that customer expectations are managed during Service Transition. Incident and problem management are important for handling incidents and problem s during testing, pilot and deployment activities.

The following activities are excluded from the scope of Service Transition best practice s:


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