APP software development why the first prototype diagram? One of the simplest reasons, in order to avoid late modifications to reduce unnecessary costs, and save development time, and an interactive prototype diagram is more conducive to the communication of the project than the picture, so the development of software prototype design is very necessary; prototype diagrams are also categorized, the following let's do the following understanding and distinction.

1, sketch

? Sketch means to use pen and paper to hand-draw the product page sketch, in order to quickly discuss with the product manager and customers, so that the product will be more specific.

2, low-fidelity prototype

? Low-fidelity prototype means that on the basis of the sketch through the computer software by a simple wireframe and text to draw the interface, in addition to some simple interactive operations, that is, dynamic design, so that you can simply experience the design, as far as possible to find problems to modify the problem.

3, high-fidelity prototyping

? High-fidelity prototyping means that the visual design on the basis of the online block diagram, and then the visual design draft into a prototype can be interacted with, the effect may be very similar to the final product, and can even be simulated on the cell phone operation. This prototype can be delivered to developers and testers, who will then develop the product according to the prototype, and testers will use the prototype as a baseline to test the product delivered by the developers.