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Classic UX Design Laws to Master

Users have "expectations" and it's in great part designers responsibility to deliver the best possible experience. The shortcut, if there is one, is to follow the classic principles of the practice. Read more about several of these through the links below: 

+ Prevent visitors from leaving with Hicks Law
+ Learn to design for conversion with the Von Restorff Effect
+ Minimize errors with Fitts Law
  • Classic UX Laws

    Von Restorff Effect

    Predicts that when multiple similar objects are present, the one that differs from the rest is most likely to be remembered. Also known as The Isolation Effect.

  • Classic UX Laws

    Tesler's Law

    For any system there is a certain amount of complexity which cannot be reduced. Also known as The Law of Conservation of Complexity.

  • Classic UX Laws

    Serial Position Effect

    Users have a propensity to best remember the first and last items in a series. This principle can be used in a variety of disciplines from page design to copywriting.

  • Classic UX Laws

    Parkinson's Law

    Any task will inflate until all of the available time is spent. In other words, "work expands so as to fill the time available for its completion".

  • Classic UX Laws

    Miller's Law

    The average person can only keep 7 (plus or minus 2) items in their working memory. As a UX designer, focus on controlling what users will remember.

  • Classic UX Laws

    Law of Proximity

    A user or website visitor will more closely associate objects close to each other than when objects are spaced far apart. In other words, "Objects that are near, or proximate to each other, tend to be grouped together."

  • Classic UX Laws

    Law of Pragnanz

    Users perceive and interpret ambiguous or complex images in their simplest form because it is the interpretation that requires the least cognitive effort.

  • Classic UX Laws

    Jakob's Law

    Users spend most of their time on other sites and so prefer your site to work the same way as the other sites they know. Don't reinvent the wheel.

  • Classic UX Laws

    Hick's Law

    The time it takes to make a decision increases with the number and complexity of choices. Numerous studies confirm that fewer choices lead to higher interaction.

  • Classic UX Laws

    Fitts's Law

    The time to acquire a target is a function of the distance to and size of the target. In very specific UX design terms,the smaller the size of the button, icon or any other interface element, and the further it is from the cursor, the more time and effort users need to click on it.

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