When starting a new web project for your business, it’s easy to focus on the way you want the website to look and fail to give adequate thought to your users. The user is the most important part of any web development project. Your web app or site can have the most beautiful design and function, but if the user's experience isn't great, then all that hard work is for nothing.
UX and UI: these two terms are often used interchangeably, but they mean very different things. UX design is short for "user experience design", while UI stands for "user interface design".
At the most fundamental level, the user interface (UI) is the series of screens, pages, and visual elements—things like buttons and icons—that allow a person to interact with a website, product or service.