@leftpaddotpy The dbus protocol framing/transport is a "standardized data format". The addresses you interact with over it are *explicitly named for application software* that you're communicating with. And forget about whether it's standard or not, it's not even a data format. It's a command channel.
@leftpaddotpy What I mean by "standard data formats" vs tightly coupled applications goes back to the early Windows idea of "inserting a paintbrush object" into your Word document rather than "inserting an image file in BMP format". Or the early Mac idea of resource forks identifying an "owning application" for a file rather than the data format of the file.