What are the two main components of User-Interface Design?

The two main components of User-Interface Design are:

1. User Experience (UX) Design: This involves researching and understanding the user's needs and behaviors to create a product that is intuitive and easy to use. It includes aspects like information architecture, user flow mapping, and interaction design.

2. User Interface (UI) Design: This is the visual aspect of the design. It involves creating the look and feel of the product, including the layout, typography, color schemes, buttons, and all other visual elements that the user interacts with. It's about making the product aesthetically pleasing while also being functional and consistent.