Web design work splits into stages: research, information structure, flows, then UI. Pick the stage that matches the problem below, then open the child page for scope.
Before you open a child page
Three things that make the choice easy
Start from the problem, not decoration
Hard-to-find content, confusing menus, or abandoned forms—open the stage that fixes that first.
Structure before visuals
Research → IA → Flow/Wireframe before colour reduces late visual rework.
Structure already ready
If the sitemap and flows exist, open Responsive UI Design directly.