What's the Difference Between Functions and Rolls?

At our size company at the moment, where we're about 11 people almost, i think, 11 to 15. We've got multiple functions, d multiple rolls for different people as and when they join. And that then is there is attached to the s o p, to the tasks, to then a person. So if a person actually then goes away on holiday, for a few weeks,. They can then pass it over to some one else, and all the processes are there. And then we just know that now it's the function that is accountable. It's that function, who's wearing thatfunction, who is going to be informed or consulted. Who signs off, is a function