One of the most Important part of the creative process behind making an explainer video, is the storyboard. A good storyboard will give everybody on the team a clear vision of how the animation will look and work in production. The time spent in this stage ironing out the sequences and defining the actions in the animation will insure a smooth and refined story when the animator stats to make the graphics move and there wont be any big surprises when the first draft is ready for review.