# Concepts

- [Data Format and Document Model](https://zefyr-editor.gitbook.io/docs/v0.8.0/concepts/data-and-document.md)
- [Attributes](https://zefyr-editor.gitbook.io/docs/v0.8.0/concepts/attributes.md)
- [Heuristic rules](https://zefyr-editor.gitbook.io/docs/v0.8.0/concepts/heuristics.md)