Which concept is a sequence of multiple visuals contained in a single file; output in calculated intervals (gif, animation, video)?

• A. Typography
• B. Master pages (InDesign)
• C. Layers (Photoshop)
• D. Time-based design

Answer: (D)

Time-based design centers on visuals that change over time, treated as a sequence within one file and played back at specific intervals. This is why formats like GIFs, animations, and videos fit the idea: they bundle multiple visuals together and use timing to determine when each frame appears and for how long, creating motion and progression. In this approach, the pacing is built into a timeline, so the output isn’t a single static image but a moving sequence guided by calculated delays and durations. By contrast, typography is about how text looks, master pages are templates for layout, and layers organize elements in a static composition; they don’t inherently convey motion or a timed sequence.