Prototyping may sound like creating fully functional implementations of your ideas and thoughts, but in this sense it covers any method that visualizes or describes an idea.
Here are some examples:
- If you want to verify a pain point, you might as the prototype simply take a photo of a person experiencing the pain point and discuss this photo with the user. You might also have the user experience the pain point on your existing product and witness their reactions, hereby simply using your existing product as a prototype.
- If you want to verify core tasks, you might as prototype use multiple photos or illustrations in a cartoon-like manner. Or you might create a small video using your colleagues as actors.
- If you want to verify solutions, ...