Rhet/Comp : Comp/Rhet : Composition & Rhetoric is study of how people use language to compose meaning and understanding. Generally, the medium is writing, but the principles are similar in any language: movement, image, etc. Draws on rhetoric - from the sophists to Richard Lanham - as well as cognitive science, aesthetics, art ...
It's not a far move from writing to digital media, but the move lets us study just how the medium shapes meaning.