Firstly, regarding Gestalt psychology, this principle explains how people use their innate visual perception to organize and interpret information. There are five laws. Applying these five laws to design can guide users during their interaction, and by leveraging activities that occur unconsciously in the human brain, it can enhance users’ understanding of interaction and interfaces.
Then, regarding the application of Fitts’s Law in interaction design, it discusses the relationship between the time it takes for a user to select a target and the size of the target and the distance of the pointer from the target in human-computer interaction. Based on these rules, it enhances the user experience during use. When designing new user interfaces, optimizing target size and location can be considered to improve the efficiency and accuracy of user interaction.
In summary, both of these principles are analyzed in the context of user interface interaction, helping users change their practical habits. They start from considering the user’s subconscious actions and aim for optimization.