I work on mainly company internal projects, so not exactly equivalent. I had two projects shortly after transitioning from tech support to test where the pictur

I work on mainly company internal projects, so not exactly equivalent. I had two projects shortly after transitioning from tech support to test where the pictures of the UI was the specification. After having a terrible experience on both of them, there was another project where the "owner" wanted to give us drawings of how the screens should look. We let them make the drawings, but we did not track them as requirements or specifications. It went all right, not great. I've worked on other projects where we had an actual UX designer, and those went much better. UX is not taken very seriously by many people in tech, but it's our equivalent of industrial design.