The ability to link graphic screens together in such a way as to simulate motion or a process.

• A. Assembly drawings
• B. Animation
• C. Bottom-up modelling
• D. Formal drawing techniques

Answer: (B)

Creating the illusion of motion by linking graphic screens in sequence. When you present a series of images or screens one after another, our eyes blend them into movement, which is exactly what animation does. It lets you show a process or a changing state by controlling how long each screen is shown and how the transition from one screen to the next occurs. This can involve planning key states and then filling in the frames in between, or simply sequencing screens to depict steps in a workflow or the motion of a mechanism. This is why animation is the best fit for linking screens to simulate motion. Other approaches stay focused on static representations or different design methods: assembly drawings show fixed configurations of parts; bottom-up modelling is about building a system from components; formal drawing techniques cover presentation conventions rather than movement.