7 Important UX Laws (with examples)

7 Important UX Laws (with examples)

User Experience (UX) is how a user feels when interacting with a product. This includes the design, look, feel, and material of the product. UX covers visual design, usability, interaction design, and user research. Understanding UX involves psychological principles that enhance user satisfaction. This article highlights 7 key UX laws.

Fitts’s Law

Fitts' Law states that the time required to move to a target depends on the distance to the target and its size. Specifically, it's faster to hit larger and closer targets compared to smaller and farther ones. This law is often used in design to ensure that important buttons or elements are large and easily accessible, reducing the time and effort needed for users to interact with them effectively.

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Hick’s Law

Hick's Law states that the more choices you have, the longer it takes to make a decision. When you have many options to choose from, it takes more time to think and decide. Designers use this principle to simplify interfaces by reducing the number of choices, making it easier and faster for users to make decisions.

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Jakob’s Law

Jakob’s Law states that users prefer websites and apps to work the same way as the ones they are already familiar with. If a new product is similar to what they have used before, they will find it easier to learn and use. Designers use this principle to create intuitive and user-friendly experiences by aligning new designs with common user expectations and patterns.

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Miller’s Law

Miller's Law, proposed by psychologist George Miller, suggests that the average person can hold about 7 (plus or minus 2) items in their working memory at once. This means that when presenting information, it's effective to break it down into chunks of around 7 items. By organizing content in smaller, manageable segments, designers can help users better understand, process, and remember information, improving overall user experience.

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Aesthetic-Usability Effect

The Aesthetic-Usability Effect refers to the phenomenon where people perceive products that are visually appealing as more usable and efficient. Essentially, when a product looks good, users tend to believe it works better, even if its functionality is identical to a less aesthetically pleasing alternative. Designers leverage this effect by focusing on both the aesthetic and functional aspects of a product to enhance user perception and satisfaction. This principle underscores the importance of aesthetics in influencing user experience and product perception.

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Serial Position Effect

The Serial Position Effect is a principle that suggests users are more likely to remember the first and last items in a series or list of information, while the items in the middle are less likely to be remembered. This concept can significantly influence how designers structure information, menus, and other content to optimize user recall and interaction.

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Zeigarnik Effect

The Zeigarnik Effect describes the tendency for people to remember uncompleted or interrupted tasks more than completed ones. When a task is left unfinished, it creates a mental tension or "intrusive thoughts" until it is completed. This effect suggests that unfinished tasks stay in our memory and attention longer than those that are finished, influencing how we prioritize and remember tasks in everyday life.

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Understanding and applying UX laws is essential for creating intuitive, user-friendly interfaces. By leveraging these principles, designers can strategically enhance recall, engagement, and overall user satisfaction. Each law offers valuable insights into human behavior, guiding us toward more effective design decisions. Incorporating these principles ensures that our designs not only look good but also function seamlessly, providing a delightful and efficient user experience. By keeping these laws in mind, you can build products that resonate with users and meet their needs effectively.

Happy Designing 👨‍💻