Prototyping Totally Explained

Everything about Prototyping totally explained

Prototyping is the process of quickly putting together a working model (a prototype) in order to test various aspects of a design, illustrate ideas or features and gather early user feedback. Prototyping is often treated as an integral part of the system design process, where it's believed to reduce project risk and cost. Often one or more prototypes are made in a process of iterative and incremental development where each prototype is influenced by the performance of previous designs, in this way problems or deficiencies in design can be corrected. When the prototype is sufficiently refined and meets the functionality, robustness, manufacturability and other design goals, the product is ready for production.

Advantages and disadvantages

Advantages of prototyping

May provide the proof of concept necessary to attract funding
Early visibility of the prototype gives users an idea of what the final system looks like
Encourages active participation among users and producer
Enables a higher output for user
Cost effective (Development costs reduced)
Increases system development speed
Assists to identify any problems with the efficacy of earlier design, requirements analysis and coding activities
Helps to refine the potential risks associated with the delivery of the system being developed
Various aspects can be tested and quicker feedback can be got from the user
Helps to deliver the product in quality easily

Disadvantages of prototyping

User’s expectation on prototype may be above its performance

Possibility of causing systems to be left unfinished

Possibility of implementing systems before they're ready.

Producer might produce a system inadequate for overall organization needs

User can get too involved whereas the program can not be to a high standard

Structure of system can be damaged since many changes could be made

Producer might get too attached to it (might cause legal involvement)

Not suitable for large applications

Software prototyping

prototyping model is a software development process that begins with requirements collection, followed by prototyping and user evaluation. Often the end users may not be able to provide a complete set of application objectives, detailed input, processing, or output requirements in the initial stage. After the user evaluation, another prototype will be built based on feedback from users, and again the cycle returns to customer evaluation. The cycle starts by listening to the user, followed by building or revising a mock-up, and letting the user test the mock-up, then back. There is now a new generation of tools called Application Simulation Software which help quickly simulate application before their development.

Electronics prototyping

In electronics, prototyping means building an actual circuit to a theoretical design to verify that it works, and to provide a physical platform for debugging it if it does not. The prototype is often constructed using techniques such as wire wrap or using veroboard or breadboard, that create an electrically correct circuit, but one that isn't physically identical to the final product.
A technician can build a prototype (and make additions and modifications) much quicker with these techniques — however, it's much faster and usually cheaper to mass produce custom printed circuit boards than these other kinds of prototype boards. This is for the same reasons that writing a poem is fastest by hand for one or two, but faster by printing press if you need several thousand copies.

Rapid Electronics prototyping

The proliferation of quick-turn pcb fab companies and quick-turn pcb assembly houses has enabled the concepts of rapid prototyping to be applied to electronic circuit design. It is now possible, even with the smallest passive components and largest fine-pitch packages, to have boards fabbed and parts assembled in a matter of days.

Further Information

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