# Hierarchy

**Capability:** Hierarchy (HI)

## Overview

This capability provides requirements for the organization and structure of USD assets through:

- Correct scene hierarchy using Xform primitives for spatial organization
- Stage metadata including defaultPrim specification
- Correct transform stack management
- Scene graph organization guidance

The capability provides guidelines and best practices for USD scene graph organization, ensuring that assets can be properly composed and organized, while maintaining correct spatial relationships and transformations.

```{toctree}
:maxdepth: 1

Requirements <requirements>
Creators <creators_overview>
Developers <developers_overview>
```
