Why Is This a Good Idea?
Changes you make once you’ve started implementing your product can be expensive. A small user interface change can have vast implications.
Changing a sketch, on the other hand, is cheap and quick. All you need is an eraser, a pencil, and a few seconds.
Basically, you are creating simple prototypes of your product. If you’re designing a remote control, you don’t create the molds and start producing them. Instead, you start with simple wood or clay models of the remote to get a feel for how it should be proportioned. Then, you add more and more detail until you end up with the final design.
Sketching is the clay model prototype of your product. The more details you nail down before committing to code, the better.
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