UI is not how the website looks, but rather about presenting the user with the right tools too achieve their goals. User interfaces are more than buttons, menus and forms. It’s a connection between user and experience.
Good UI is a balance between good design and effortless usability.
Great UX (user experience) is the look, feel and usability of a website and the user interface or UI is the interactivity within the site that generates this experience.
Design patterns are standard reference points for experienced user design. It is the common navigational tools, layouts, type and overall design that is known to generate positive feedback.
Common navigational patterns include hamburger menus, navigation tabs, article lists, drop down menus, and hierarchies.