A 3D animation is a particularly effective means of communication to clarify matters between designer and user, between producer and customer. Spoken or written text is often superfluous, making it easy to distribute the animations in other language groups.
An animation can show the working of a product even before it has been produced. But even after it has been produced, animations offer a lot of possibilities. By means of exploded views, cross-sections, transparent parts, colors, etc. various things can be made clear without having to disassemble the effective product.
These animations can explain the general operation of the product or machine, but also of a small detail inside or simulate the flow of liquids and gases.