> For the complete documentation index, see [llms.txt](https://v2.dataos.info/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://v2.dataos.info/build/understand.md).

# Understand

- [Overview](https://v2.dataos.info/build/understand/overview.md): Inspect your sources before you build. Decide from facts, not assumptions.
- [Connect sources](https://v2.dataos.info/build/understand/connect-sources.md): Register an authenticated connection to a source so DataOS can reach it without moving the data.
- [Scan metadata](https://v2.dataos.info/build/understand/scan-metadata.md): Scan a source so its tables, columns, lineage, and usage become discoverable in DataOS, without moving the underlying data.
- [Explore data](https://v2.dataos.info/build/understand/explore-data.md): Inspect the metadata, then the values, before you commit to a source.
- [Datasets](https://v2.dataos.info/build/understand/explore-data/datasets.md): Inspect dataset metadata, lineage, and usage in the catalog.
- [Workbench](https://v2.dataos.info/build/understand/explore-data/workbench.md): Connect to a source, run SQL, and inspect the actual values in Workbench.


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