I can't give you any advice on the documentation end of things but if you're testing cable assemblies, and especially if you need to know if any two cable assemblies are wired the same then take a look at some of the Cirrus Systems Corporation's Cable Tester such as the 1000 systems. Cirrus makes socket adapter for them that will fit just about any known connector. And the interface connector is simple so it's easy to make your own adapters if need be. Many of CS cable testers only come with two interfaces so you can only use two adapters and are therefore limited to testing between any two connectors on the cable. But CS also sells optional "boxes" (I'm not sure what they call them) that have additional interfaces so you can add more connector adapters and can test cable assemblies with multiple connectors.
One of the nice features of the CS testers is that you can plug in a known good cable with unknown pinouts and the tester will "learn" connections the cable and then you can plug in other cable assemblies and it will tell if the pinout is the same. You can also scroll through the display on the tester and it will show you all of the signal routing and any internal connections. My tester also has an RS-232 port so I have connected it to a portable PC via RS-232 and directed the wire list to the serial port and then captured the wire list in a file.
I've had my tester for over 20 years and I don't know what Cirrus offers today but their old model testers work so well that they're always in demand and the E-Greed sellers are asking stupid money for old models similar to mine.
PS I just looked at Cirrus website for the first time in years and it looks like their current line of testers still has the same interface and the same connector adapters.
https://www.cirris.com/products/adapters But for some reason they only show a few of their available connector adapters. I know that they used to show
hundreds of them. <https://shop.cirris.com/product-category/adapters/>
Oh, I finally found a picture of a 1000 with two added-on interfaces
https://www.cirris.com/61-product-information/96-signature-1000m-2000