Requirements of the mobile app design which need to be implemented. or if any Wireframes: These are basic sketches or blueprints of the app's layout and functionality. Mockups: These are more detailed visual representations of the app's layout and design, which may include color schemes, fonts, and other design elements. Prototypes: These are interactive models of the app that allow you to navigate through its different screens and features. Style guides: These are documents that outline the app's design standards, including typography, color palettes, and other design elements. Design assets: These may include icons, images, and other visual elements that are used in the app's design.