Prototyping is the process of quickly building and testing rough versions of a product to find out what works before committing to the full build. It is not a single artifact but a habit: make a version, put it in front of people, watch what happens, then adjust and repeat. The aim is to learn fast and cheaply.
A good comparison is a chef developing a new dish. They do not put it straight on the menu. They cook small test versions, taste, tweak the seasoning, and try again until it is right. Each round costs little and removes risk from the final plate. Prototyping works the same way: each prototype is a tasting, and the cycle of testing and refining is part of iterative design.
The trick is to start rough and only sharpen what survives. Round one might be paper sketches you walk five people through, just to see if the basic idea lands. Round two adds clickable screens to test the actual taps. By round three you are tuning wording and edge cases. Starting high-fidelity is the classic trap: you pour days into polishing a flow that the very first test would have told you to throw away. Cheap and early beats pretty and late, every time. This loop is where a lot of good product decisions are made. By the time something is coded, the big questions about flow and clarity have already been answered through testing, which is what makes prototyping such a practical part of UX design.
At TopDevs we treat prototyping as a normal early phase, so clients see and shape their product through real testing long before development begins.
