Well, Cathar me with a chainsaw...
..I mistakenly thought that was what I'd been doing in the IT field for the last 15-odd years - writing and designing separate business-logic, user-interface and data-interface layers.
Obviously, I wasn't. It didn't exist until Microsoft coined a TLA and started marketing it. Poor ol' delusional me.
I'm getting sick and tired of MS branding something and then releasing it as a "new concept".