Prototype Categories

Simply for easier understanding, the term "model" is loosely used to mean the same as "prototype" but a prototype doesn't always mean that it is an overall close estimation of the final product.

There are four basic categories to prototyping:

(1) Proof-of-Principle Prototype / Model - also called Breadboard

the simplest kind of prototyping wherein only some aspects of the design like sensors or mechanical components are tested and there is no need to make a model that even looks like the final product. Even the materials and the process of producing the final product is not simulated.

(2) Form Study Prototype / Model - this model approximates the size, look and feel of a product but not its function. This type of prototype is used to check the final form of a product but without using the intended color and texture of the final product. These are often made from non-durable materials.

(3) Visual Prototype / Model - this is close to the final product when it comes to its looks, surface texture and color but it is still not a close PCB Assembly estimation of its function and some materials used may not even be the same as the one intended for the final product. This is the type commonly used for advertising purposes in print ads.

(4) Functional Prototype / Model - also called a working prototype

this is the closest approximation to the final product in terms of appearance and function. Also prototypes likes these are often produced in scaled down sizes to save on costs. Actual sized prototypes are made last stages of the design testing.

Prototypes will always have its limitations but when it comes to electronics, it is an important aspect in verifying if a design works and in making alterations when the design fails. Techniques are used in making prototypes for PCB assemblies that allow the simulation of electrical circuitry without necessarily using the same materials as the final product.

Prototype PCB assembly is the last good chance of a manufacturer to make improvements in the process of making quality electronic assembly. And good, responsible PCB assembly companies always strive to make good prototypes.