Explain top-down design methodology in Creo and its benefits?

Top-down design in Creo starts with a skeleton model containing key geometry (planes, axes, surfaces) that defines interfaces and spatial relationships. Components reference this skeleton, ensuring automatic updates when high-level design changes. Benefits include early design exploration, consistent interfaces, parallel engineering (teams work on components simultaneously), and easier change management. Publish Geometry features and copy geometry links maintain associativity between skeleton and components.