Operational Acceptance Testing (OAT) is carried out just after the execution of User Acceptance Testing and before the final product is rolled out. It’s key for the success of your application or software as it allows users to interact with your product one last time before final deployment.

It therefore provides the opportunity to iron out any issues in a production-like environment without the pressure and high stakes of an actual release.

An OAT Test essentially provides a penultimate hurdle to hop when it comes to the lifecycle of software testing, where changes are finalised, and everything is primed and ready to go.