I can't speak to early computing, but starting around when business applications emerged (60's/early 70's?), developers were very involved in gathering requirem

I can't speak to early computing, but starting around when business applications emerged (60's/early 70's?), developers were very involved in gathering requirements, designing, coding, testing, etc. Shortly after I entered the field, circa 1992, I started hearing about software development as an assembly line process. The developer role started being split: BA, architect, coder, sometimes a QA staff, etc. Whenever I've worked on projects with teams split out this way, it becomes a nightmare of communication overhead and miscommunicated requirements.