Motiur Rahman Shakil

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Motiur Rahman Shakil
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Jacob’s Law in UX Design and Best UI Example

September 12, 2023

Let’s understand Jacob’s Law in UX Design today. User Experience (UX) design is a continually evolving discipline, and staying on top of the newest trends and concepts is vital for creating successful and user-friendly interfaces. One such principle that has gained importance in recent years is Jacob’s Law. In this post, we will investigate Jacob’s Law in UX design and present real-world examples of how it may be utilized to develop excellent user experiences. Also, read another UX design principle The Banana rule by clicking this link.

Understanding Jacob’s Law

Jacob’s Law, named after famous usability expert Jacob Nielsen, is a key idea in UX design. The law indicates that people like your site to work the same way as all the other sites they already know. In other words, when consumers interact with a new website or application, they anticipate it to behave familiarly and predictably based on their past experiences with existing platforms.

The Power of Familiarity

Familiarity has a key impact on user pleasure. When users meet a website or app that follows known design principles and performs like other platforms they’ve used before, they feel more at ease and competent in navigating the interface. This comfort level can dramatically affect their overall user experience

Consistency is Key

Jacob’s Law underlines the necessity of consistency in UX design. Character extends to several areas of design, including layout, navigation, vocabulary, and interaction patterns. When designers stick to consistent methods, users may effortlessly transfer their knowledge from one application to another

Jacob's Law in UX Design

Real-World Examples

To better explain Jacob’s Law in action, let’s look into some real-world instances of how this theory has been utilized to enhance user interfaces:

  1. E-Commerce Websites
    E-commerce sites, such as Amazon and eBay, are good instances of Jacob’s Law in operation. These sites follow common e-commerce design standards, making it easy for customers to browse products, add items to their carts, and finish purchases. The familiarity of these encounters adds to increased conversion rates and customer happiness.
  2. Mobile App Menus
    Mobile app designers generally adhere to regular navigation patterns, such as the use of a hamburger menu (three horizontal lines) to access further options. This strategy ensures that users can rapidly navigate their way across numerous programs, regardless of the exact information or functionality they offer.
  3. Social Media Platforms
    Social networking networks like Facebook and Twitter retain a similar layout and user flow. Users may quickly switch between profiles, publish updates, and interact with material, because of the predictability of these platforms’ layouts.
  4. Operating Systems
    Operating systems like iOS and Android give a uniform user experience across multiple applications. Users can expect comparable motions, buttons, and menus, regardless of the app they are using. This uniformity promotes user productivity and minimizes the learning curve.

Applying Jacobs Law in UX Design

Now that we’ve discussed the concept and seen some examples, let’s discuss how you can apply Jacob’s Law to your UX design projects. Here are some practical actions to consider:

  1. User Research
    Start by performing detailed user research. Understand your target audience and their existing user experiences. Identify the platforms and websites they are familiar with and the design aspects they enjoy. This information will guide your design decisions.
  2. Design Consistency
    Maintain uniformity across your design. Use a consistent color palette, font, and design components. Ensure that your navigation follows recognized patterns, making it straightforward for people to make their way across your UI.
  3. Usability Testing
    Conduct usability testing with real consumers. Gather feedback and make iterative adjustments based on their suggestions. Usability testing helps discover any difficulties with your design’s predictability and familiarity.
  4. Innovate Thoughtfully
    While conforming to established standards is vital, it doesn’t imply you can’t be creative. Innovation can make your interface distinct, but it should enhance the user experience, not impede it. Ensure that any unique features are intuitive and easy to use.
  5. Continuous Learning
    Stay current with the latest trends and changes in user behavior. Technology and consumer tastes evolve, thus it’s necessary to adapt your design concepts accordingly.


Jacob’s Law in UX design underlines the necessity of familiarity and consistency in designing user-friendly interfaces. By complying with customer expectations and established design norms, designers can dramatically enhance the entire user experience. Embracing Jacob’s Law can lead to higher customer satisfaction, increased engagement, and enhanced conversion rates.

Now that you have a more precise grasp of Jacob’s Law and how it can improve your UX design efforts, take the time to use these concepts in your projects. Remember that user pleasure is vital, and following established norms can go a long way in accomplishing that aim.


  1. How can I use Jacob’s Law on my website?

To apply Jacob’s Law, ensure that your website follows recognized design conventions and behaves reliably. Pay attention to layout, navigation, and interaction patterns.

  1. What are some standard UX design conventions to follow?

Common UX design principles include employing familiar iconography, giving simple navigation menus, and delivering intuitive search functions.

  1. Why is familiarity crucial in UX design?

Familiarity makes people feel comfortable and confident in using your interface. It minimizes cognitive strain and promotes user happiness.

  1. Can I be innovative in UX design while still obeying Jacob’s Law?

Yes, originality is vital, but it should be tempered with usefulness. You can innovate within the boundaries of existing conventions.

  1. Where can I learn more about UX design principles?

There are many online tools, courses, and books available to assist you in digging deeper into UX design concepts and best practices.
Incorporating Jacob’s Law into your UX design process can lead to more intuitive and user-friendly interfaces. Remember that user pleasure is vital, and following established norms can go a long way in accomplishing that aim.

Posted in UX Theory
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