Our ship was built in 1989, before the time every shipyard used software to create technical drawing. Luckily the design of our vessel hasn't changed over the years to our ship's designer, Herman Jansen BV in the Netherland had AutoCAD drawing of newer ships that used the same hull.
However, the inside of the vessel like engine room, piping diagrams, and lots and lots of details were not available in AutoCAD. So, we just contracted a Chinese company to convert the most important of these drawings into AutoCAD to help us with the conversion and be able to provide precise and updated plans to meet future regulatory compliance.
Where would we be without the Internet ? Thanks Al Gore ! :-)