Programmers, developers, use the code to create the world. Too much knowledge of all aspects of the helpless will always be enough.
From the design began to say, the first thing is the color, layout, lines, know that better than nothing right.
Then the UI, operational feedback, including sound, vibration, memory, consistency of operation, do not know how summary
The modular structure
The use of tools and library components
Development features
Reproduced in: https: //www.cnblogs.com/jamesldj/p/3337258.html