Operational Acceptance Testing. There’s a woolly phase of testing if ever there was one. Not everybody understands it, not everybody does it. But the fact is, every test manager should consider OAT to some degree prior to a significant system or change going live.
Without OAT, the risks of disruption to service can be considerable. How would your business stakeholders feel about an application being offline indefinitely due to the fact there was no change backout facility? How confident are IT ops that they can restore from backup if an application change corrupts the database?
Here are a few checkpoints that may be pertinent to consider when thinking about scope for an Operational Acceptance Test plan.
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