A brief introduction to several general design principles

Often hear people talk about the design is very subjective, it is difficult to have standards. But some common design rules, or can let us in simple, in the design process to give us some assistance. The following is a brief introduction to several:

1.flexibility-usability tradeoff elasticity-usability tradeoff

Elasticity, which knows everything, is not a master. As the elasticity increases, the usability of a single function is reduced, resulting in reduced efficiency, complexity, time, and increased cost of development.

How to balance the richness and use of the function, the elasticity of demand under what circumstances is meaningful? In short, users have no clear expectations of their future needs, they can do more to test the user's functional requirements. For example, a PC with versatile flexible equipment is suitable for its own needs and is not so specific to the user. With the use of the game machine, it is more in line with the game has a clear demand for enthusiasts users.

Also, such as, QQ image of the fast tune, a do not understand the image processing, the graphics processing parameters do not have a clear understanding of users, can provide a number of quick adjustment settings, to provide a wider range of elastic functions.

Whether the product design is in favor of elasticity or usability depends on the user we are looking for, and there is a more accurate description of its expected function.