What is WAVE Geometry Linker in NX and how does it support top-down design?

WAVE (What-if Alternative Value Engineering) Geometry Linker in NX creates associative copies of geometry between parts in an assembly. Parent geometry changes automatically propagate to linked child parts. It supports top-down design by allowing control parts to define interfaces that component designers reference. WAVE links can be broken to create independent geometry when needed. This enables concurrent engineering while maintaining design control through master geometry.