[bpyne]

"Well, the client knows his business best, but sure as hell they do not know how to make software best."

My "clients" are all internal. As I work with more departments, I realize how little they know how they operate. They understand well what their mission is. But the processes and exceptions are largely in the minds of one or two people.

My team modernizes legacy integrations between core systems. The departments had a lot of retirements. The retirees took the knowledge with them and left sparse documentation. As I go, I'm trying to develop business requirements documents for them. But it slows down projects.

So, I'd say you're right that clients know what they do but not always how they're doing it. I have a feeling that it's not just my organization experiencing this issue.