The prototype is the first state of any idea, a work, or an entity, and it shows the basis of the idea, how the path required to sustain that idea will be followed thereafter. In short, the prototype is the basis for an example of anything. Using these examples, it is possible to determine the form of the prototyped idea that is closer to completion or completed.
For example, you have an idea. This idea can only be seen, prototyped, or completed. When the phone was first invented it first existed as an idea for the person who invented it. Then, after evaluating how to implement the weak and superior aspects of the project, he made the first prototype of the phone. Later, the phone was developed and took its present form. Sometimes a completed idea can lead to the formation of a new prototype, resulting in a new idea later on. For example, making mobile phones based on home phones.