What I make of it
A single signal tree for vehicle data — the closest thing the car industry has to a shared model.
COVESA Vehicle Signal Specification (VSS)
Information Model
Automotive
The Vehicle Signal Specification (VSS) is an initiative by COVESA to define a syntax and a catalog for vehicle signals. The source code and releases can be found in the VSS github repository. Some tools for parsing and converting VSS files can be found in the VSS-tools github repository. This documentation gives you an overview of VSS: Introduction Read this part if you want to know more about what the specification is all about, what’s in and out and how to quickly browse through the current status.