UI design and UX design are two of the most often confused and conflated terms in web and app design. And understandably so. They’re usually placed together in a single term, UI/UX design, and viewed from the surface they seem to be describing the same thing. It’s often hard to find solid descriptions of the two that don’t descend too far into jargon. But fear not!
UI designers need to make sure the visual language they choose fits the class of application they’re writing. They’re trying to predict user expectations. If your team is designing a travel app, it’s important to research how other travel apps have been developed in the past. Which ones worked? Which ones didn’t? There are design lessons to be learned from the work others have done before.
UX design is particularly interested in user expectations. All of the experiences and interactions that users have had with every application they’ve used in their lives have helped set their expectations for how interfaces are supposed to work. If a UX designer isn’t intimately familiar with these expectations, they could inadvertently design an interface interaction that seems logical to them but breaks commonly accepted conventions. Users don’t like when an interface behaves very differently than they were expecting, and this could negatively impact their experience.