Hierarchy classification:

1. top of the aat hierarchies
2. Objects Facet
3. Components (hierarchy name)
4. components (objects parts)
5. [components by general context]
6. [joints and joint components]
7. joints (connections)
8. [joints by material joined]
9. wood joints
10. simple joints
11. spline joints

Anotations

Scope note:

Joints generally used in woodworking to either hold two or more wooden boards together or to stabilize a splitting board or knothole. A butterfly joint is typically cut from a single piece of wood in a shape resembling two dovetails connected at the narrow part; it is fitted into a hole of the same shape that has been cut in the board or boards.