At their most simple forms, UX design is what makes an interface useful, and UI design is what makes an interface beautiful. For UI, this includes a blend of visual hierarchy and interface elements. To understand what separates a great interface from a good interface, one must understand the UI design is merely just one layer of the entire design process. Perhaps this is why people often confuse UX and UI. In the following few paragraphs, however, I hope to help you as the audience or reader understand where the differences lie in the context of the design process.