Was looking into creating some tooling for the construction industry perhaps 15 years ago as drawings were send over emails with all the version nightmares that creates. Some Danish government agency had a ‘Digital Construction’ project going on so I initially thought I was too late. After a couple of years all they had amounted to was creating a ton of convoluted documents defining common CAD drawing layers. I’ve since moved on but I would not be surprised if drawings are still send by email between architects/engineers/contractors. Perhaps that agency has created a 50 page spec for tracking versions in the file name ;-)