An assembly-based feature which affects all parts with the same document name as the selected parts.

The reference plane, profile, and extent definition reside in the assembly document, but the surface geometry resides in the part documents.

This option is useful when you want to globally modify one or more parts while working in the assembly. The surface geometry can be viewed in the part documents, and any other assemblies that reference the part documents.

You need write access to the affected part files to construct an assembly-driven part feature.