The ability of motion boost the animation to a unique art form. Animatic is not the art of a moving animation, but the design of animation. In fact, "animatics" gives us a better idea of how the scene will look and feel with motion and timing.
At large, an animatic is a series of still images edited together and displayed in sequence with a rough dialogue and/or rough sound track added to the sequence of stills to see whether the sound and images are working successfully together.
This allows the animators and directors to work out any screenplay, camera positioning, shot list and timing issues that may exist with the current storyboard.
The storyboard and soundtrack are changed if needed, and a new animatic may be created and reviewed with the director until the storyboard is perfected. Animatics can also be used by advertising agencies to create inexpensive test commercials