By default, what happens to the child features when their parent feature is deleted?

When a parent feature is deleted in NX, the default behavior is that the associated child features are automatically deleted. This approach ensures that the design remains coherent, as child features depend on their parent for geometry, definition, and sometimes constraints. When the parent is removed, it renders the child features obsolete because they no longer have the foundational context or data required for their existence.

The other possibilities, such as archiving the child features or keeping them visible, would not logically maintain the integrity of the design. Hence, understanding this relationship between parent and child features is crucial for effective design practices within NX, ensuring that modifications to the model hierarchy result in expected outcomes.