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Miller's Law
Definition
Miller's Law is the theory that a person can only hold 5±2 items in working memory. This law is a concept about cognitive ability and information processing ability, and suggests a limit to the amount of information that can be processed at one time.
Explanation
For example, if a website has too many menu items and gives users more than 10 choices, users may have difficulty making a choice and may get confused. Therefore, designers should limit the number of main menu items to 5±2 to help users make decisions easily. This can be applied to various interface designs such as websites, apps, and software.
Importance
Miller's Law plays an important role in interface design. Understanding it allows designers to design information that is easier for users to process and understand. It is important to consider this law because presenting too many items or information at once can cause users to become confused or miss information.
