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Document code: Security level: Effective date: ICT Governance 

PRO-0027.06 Internal 15/01/2019 

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## 3.5. IT Work Execution including ITIL Service Transition 

The ITIL Service Transition lifecycle phase  is implemented as part of the IT work execution and concentrates on making the transition from the changes planned by Service Design to implemented Service changes, ready for customer consumption . This covers all activities related to building, changing, testing and deploying the Products and components underpinning the Service as well as changing the Service in other terms (for example, improving hours of availability or service level) as necessary. 

In general, IT work can be categorised into Project work, Maintenance work, Service changes and cross-utting work . In the IT Programme Plans, all work should be categorised into one of these categories. 

It may also happen that during execution of the Programme Plans further analysis of the work leads to a change in the category, for example, if a CAB concludes that certain work cannot be performed as Maintenance but needs to be performed as part of a Project. 

