Errors: What steps does the interface take to lessen the chance of user error, and how do they let the users correct an error?.Memorability: After leaving a website, how likely will the user be able to remember how to use it the next time they visit?.Efficiency: Does the interface allow the user to complete tasks in a timely manner?.Learnability: Can the user complete their tasks with little difficulty?.Nielsen defines Usability through the following five characteristics learnability, efficiency, memorability, errors and satisfaction. Personally, I always refer back to the usability characteristics defined by the research company Nielsen Norman Group. But is there anything more objective? More formalized? How do you know if the website UI design is good? So, if you’re wondering how to evaluate whether a user interface is good- or even great-how do you decide? I mean, you can determine whether you find a user interface visually appealing, and you can of course use the interface to ascertain whether it’s an intuitive, straightforward experience. Select an example from the clickable menu to jump straight to it, or simply read on. In this article, I’ll tackle the question of what makes a good user interface-with a bit of help from the Nielsen Norman Group-before diving into eight examples of great website UI design, and a substantiation of my choice. Really exceptional user interfaces will not just please the user by facilitating the frictionless achievement of the task at hand-they will also please them aesthetically and experientially.Īnd that could mean any number of things: a slick, original animated interaction that intuitively draws the user’s attention to a certain element, or an uncluttered, clean design and clever use of white space that imbues the user with a sense of calm, for example.

Truly great UI designers achieve this and more. Fundamentally, a good user interface enables users to complete the task that they came to the website to do with ease and without confusion. We’ve all encountered websites and applications that make us want to throw our devices across the room in frustration.

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