One example of where software prototyping helped me was deciding which library or framework to use. At my job, I had the option of two different Futures librar

One example of where software prototyping helped me was deciding which library or framework to use. At my job, I had the option of two different Futures libraries to handle async, and I had to chose which to start using. And I went off to write like a quick version using each and when I got to trying to handle consuming pagnated responses, it was a terrible terrible fit for one of the frameworks, and required only like 20 lines in the other. I then took that back to the planning phase and used that to decide how the entire application was going to be structured, as we didn't want two competing frameworks.