Operational Acceptance Testing (OAT)
The purpose of OAT is to prove the aspects of the system that do not affect the functionality but can still have a profound effect on how it is managed and supported.
OAT concentrates on areas such as resiliency, recoverability, integrity, manageability and supportability, with the specific exclusions of Performance, Security and Disaster Recovery, which are areas of speciality in their own right.
The required level of OAT is determined by using CDRM (Change Driven Risk Management) and the output from this will recommend the risk mitigation strategy for all phases of the project. This will enable the OAT phase to focus on mitigating the operational risks.
The following mitigation methods form the OAT phase:
- Backup & Recovery
- Change Implementation