I wasn’t realize how psychology can play an important role in interaction design until reading about Gestalt Principles and Fitt’s Law. I didn’t really think of why most of the interactive interfaces are following similar principles, all the studies and experiences have given the best way to build a great user experience.

When doing something needs to guide users silently, Gestalt Principles can be great references. Users may follow the way that designers want them to go, for example some path to important location in video games. And maybe not only visually, also texts can provide similar effects. According to Gestalt Principles, people’s imagination can be powerful and do a lot work, so unconspicuous elements that don’t disturb main design in the interface can be considered.

Fiit’s Law can help me to decide the layout of interfaces and where the most important buttons or icons should be. They should locate at the easiest place on a screen that users can access, and for sure this will depend on different devices, an Ipad and a kiosk will be layouted differently. Users may not have accurate feelings about distance in screens, so sometimes Fitt’s Law may also help to indicate users softly.

Both Fitt’s Law and Gestalt Principles are great and if I can use them well in my design works, I believed that better user experiences will be made.