Hmm, space is a little different because so many products are one-offs. It’s hard to design checklists and detailed procedures when you’re making what are essentially prototypes each time. So you make more general processes and then your engineers apply them as needed to each unique build. It can end up looking like a bit of a mess. Space builds rely a lot on expert techs, good modular documentation, and multiple layers of engineering oversight because things change along the way and you can’t always plan for it.
I’m a process engineer at a different aerospace company. I standardize as much as I can and work hard to make instructions clear but man it’s a struggle. Boeing’s space group needs to pay people enough to retain good talent, because they’re all making decisions all day long.