A documentary (PBS/BBC) showed many details of the development and building of the Boeing 777.
21st Century Jet: Making the Boeing 777.Design developed on computers, then subcontracted to many vendors including small independent metalworking shops.
New fabrication techniques which hadn't been used previously were applied to the construction of miscellaneous parts and airframe components.
I've seen the series more than once and would watch it again, it's that interesting, to me at least.