In my experience a business analyst talks to a business manager and they come up with a simple 'sunny day' as-if story. This gets handed of to a developer who n

In my experience a business analyst talks to a business manager and they come up with a simple 'sunny day' as-if story. This gets handed of to a developer who notices information gaps and inconsistencies. After some initial back and forthing the dev is told to go talk directly to the people actually doing the work and inevitably discovers the management is completely clueless about how their business is actually operating. At this point one of two things happen. Management on both sides double down and a system is build that on the very first contact with the users is shot down into a never ending dead spiral of change requests and extensions before it is eventually abandoned and replaced by a next clean slate attempt . Or, more rarely, the as-if document gets ditched and the system is reconsidered and the project gets amended to actually deliver something that can support the real business operations.