These are two ways of making the animation.
- Straight ahead action - we set the starting position and ending position - the computer itself finds intermediate values between them.
- Pose to pose - this is frame-by-frame animation - we use it when we need to animate something complex (for example, burning fire or flowing water).
In 90% of cases, for the production of html5 banners, we use Straight ahead (we set starting position and the final and create animation after). The animation should be very simple since the task of the banner is just to send the user to the website (not to sell or explain something).