Service Validation and Testing
Successful testing depends on understanding the service holistically – how it will be used and the way it is constructed. All services – whether in-house or bought-in – will need to be tested appropriately, providing validation that business requirements can be met in the full range of expected situations, to the extent of agreed business risk.
The key purpose of service validation and testing is to provide objective evidence that the new/changed service supports the business requirements, including the agreed SLAs.
The service is tested explicitly against the utilities and warranties set out in the service design package, including business functionality, availability, continuity, security, usability and regression testing.
Ensuring that the service will be useful to the business is central to successful Service Transition and this extends into ensuring that the service will continue to be relevant by establishing appropriate metrics and measurement techniques. Evaluation considers the input to Service Transition, addressing the relevance of the service design, the transition approach itself, and the suitability of the new or changed service for the actual operational and business environments encountered and expected.