platform interoperability

"The term interoperability in this report refers to the ability of different digital services to work together and
communicate with one another. This interconnection can allow users to combine multiple services with
complementary functionality, for example when a photo received by email is automatically added to a
user’s online photo storage service." OECD (2021), Data portability, interoperability and digital platform competition, OECD

So platform interoperability is getting systems to work together even if they run on different types of hardware or operating system.
Competition Committee Discussion Paper