Don't be so sure... I am currently trying to implement a paperless system and we were talking about log ins. I innocently asked a question of "does the system record the log in with the data?" and they said "no". It comes down to people designing IT systems who don't understand what is required from a quality system.
You're right about IT people and Quality Systems. However, I have had the opposite experience. Shop floor systems are normally bespoke so should allow for traceability of log ins. If the QA person is involved.
Also I have used SAP extensively along with other systems using scanning. It is honestly very difficult to make sure that an operator does what they should. Mistakes I saw included; scanning too much packaging to a line (making you look like you'd overused by 300% and leaving you with a part pallet which the system says isn't there), scanning of ingredients to the wrong line, logging in as each other etc.
I'm not doubting you suffered these and I can see it, again however, a lot of this can be designed out. Production can be split into smaller work units on the system so that only material issue to that work group can only be used by that work group and stuff like that. Computer says no! And logging in as each other well if something goes wrong then that's a disciplinary matter. Over issuing could be a problem, but I'm sure could be controlled in a
well designed system.
All of the above are solvable but we ended up employing someone to solve the issues. It was a full time job initially!
Totally agree here. In a past implementation the company thought they would be able to reduce staff, in actual fact the new system needed much more information and more admin work. The information was great though.
Also, and this will make you laugh, remember a pallet label is a label; it does not necessarily represent a pallet! I once had an issue with some pallets made and our records said we'd made 20 at a certain time. What I didn't know is pallet labels were being preprinted by the staff and so the pallets I'd put on hold were actually labels in a drawer! If an operator faked paperwork, they'd know they were doing something wrong and potentially illegal, preprinting labels will only ever be found out when you have an issue (unless you happen to check first.) The problem with computer based traces is it requires people to understand a process which initially probably seems esoteric.
Don't you just love people.

Everything is possible good and bad, as the old computer addage goes "Garbage in Garbage Out" - GIGO. If well designed and managed and with excellent training and support a computer system can streamline the process and reduce the opportunities for human error. Or on the other hand it can be crap.
Regards,
Simon