# Page Not Found

The URL `preface/the-interface` does not exist.

You might be looking for one of these pages:
- [The interface](https://docs.buildings.ability.abb/collection/english-v14/foreword/the-interface.md)
- [Engineering](https://docs.buildings.ability.abb/collection/english-v14/for-developers/engineering.md)
- [What are edge nodes?](https://docs.buildings.ability.abb/collection/english-v14/edge-nodes/what-are-edge-nodes.md)
- [Engineering](https://docs.buildings.ability.abb/collection/english-v14/documentation/engineering.md)
- [The roles menu](https://docs.buildings.ability.abb/collection/english-v14/documentation/roles/the-roles-menu.md)

## How to find the correct page

1. **Browse the full index**: [/sitemap.md](https://docs.buildings.ability.abb/collection/sitemap.md) - Complete documentation index
2. **View the full content**: [/llms-full.txt](https://docs.buildings.ability.abb/collection/llms-full.txt) - Full content export

## Tips for requesting documentation

- For markdown responses, append `.md` to URLs (e.g., `/collection/english-v14/foreword/the-interface.md`)
- Use `Accept: text/markdown` header for content negotiation