Testing with different types of prototypes

1. What are the 3 types of prototyping?
2. What are the 4 different types of prototype and their purpose?

What are the 3 types of prototyping?

There are several methods of industrial design prototyping: iterative, parallel, competitive, and rapid. These different methods of prototyping produce varying models of proof-of-concept during the product development process.

What are the 4 different types of prototype and their purpose?

Rapid (Throwaway) prototyping. Evolutionary prototyping. Incremental prototyping. Extreme prototyping.