User Acceptance when done properly is very effective. But in most cases i have seen companies taking this to the extreme especially in companies who were following traditional waterfall process People are used to do certain things in certain way for long. It is difficult for them to change. Moreover there is a trust factor. They don't (or wont) trust the quality of the software unless they verify it. The result is complex long UAT period where someone from "UAT testing" team as to test and approve before the product can be released to production. They even refuse to share their test cases with others. And in many cases i have seen that this testing might not find real bugs or is even related to user acceptance. This is the remnant of old way of doing things and this should change in modern Agile DevOps delivery. Ideally the UAT period should be very small and if possible eliminate this stage completely. The Agile Coaches and scrum masters will have to "train...
The practical "bytes" of Agile And DevOps Transformation