define platform and system

[orangecms]

also the term platform engineering, who coined it etc
https://en.wikipedia.org/wiki/Platform_engineering
(mostly in a service context here....)

[orangecms]

mention https://en.wikipedia.org/wiki/Hardware_Platform_Interface which is more like IPMI, DMI or other DMTF stuff

simple: Platform = System + Interfaces

interfaces be stable so that apps can run on the platform and services can be integrated; interfaces form a contract

[orangecms]

How about general terns... or other domains than hardware and software?

https://www.weforum.org/stories/2017/02/what-are-platforms-and-systems/

[orangecms]

device trees describe a platform to the OS; they offer slices of memory, platform ID (compat string) and peripherals (MMIO...)