This user experience wheel shows the integral components to four main phases:

• Strategic phase;
• Production phase;
• Development phase;
• Conceptual phase.

It shows what should be implemented, how graphic design should be established, and several other things, in order to improve on factors such as accessibility, ‘findability’ etc.

For example, under graphic design, the wheel notes that typography, media use, color scheme and contrast are integrals parts to improving desirability. The wheel is set up in order to allow developers to see what is needed to further advance in certain areas that may be lacking, and what is required in order to do that.

Source: UX Motel