The Outdated Metaphor
The notion of a score, with a single timeline and a single depth axis, the stage and the cast, all worked well in the beginning. Because the (multi) medium of computers was new, people needed a familiar metaphor they could relate to. And the level of user interaction wasn’t too high, so it made sense to think of it as a movie with perhaps a little interaction on top.
Not so anymore. As the demands for user interaction increases, the limitations of the metaphor...