An animatic is the first stage of the edit in an animation. It's the combination of the storyboards, audio (possibly with temp voice acting), and timing. It's used as the base for the animation: animators will take the shot angle, durations, certain actions, and timings as a starting point for their work on each shot.
- The right action at the right time - if there's a certain key action boarded out that should correspond with a point in the script and/or sound effect, then the timing of this relative to the surrounding dialogue should be correct.
- Reactions should be timed relative to their cause - and also given enough space to sink in!
- The first and last shot of a scene can be difficult to judge before the full programme is together, but an approximate length can be guessed at.
- An object coming closer to the viewer at a constant speed will need less duration of each board where it gets closer, mimicking the appearance of an object moving similarly when filmed.