Is there any code for this? Any specific design documents that actually go into detail? All of the PDFs I find don't go beyond the CIO level. Reads like a typi

Is there any code for this? Any specific design documents that actually go into detail? All of the PDFs I find don't go beyond the CIO level. Reads like a typical German bureaucracy project: Lots of requirements but nothing that could even remotely be implemented in time.