# Knowledge bases

Create and maintain knowledge bases, and manage their data sources, document segments, and semantic entries.

## Choose a task

| What you need to do | Open this page | Use it when |
| --- | --- | --- |
| Manage knowledge bases | [Manage knowledge bases](knowledge-bases.md) | Create, view, update, or delete knowledge bases and their tags. |
| Manage data sources and documents | [Manage data sources and documents](data-sources-documents.md) | Add, preview, update, or delete knowledge base data sources and documents. |
| Manage segments and processing tasks | [Manage segments and processing tasks](segments-processing.md) | Create, import, switch, or reprocess document segments. |
| Manage semantic entries | [Manage semantic entries](semantic-entries.md) | Create, import, export, validate, or update semantic entries. |

```{toctree}
:hidden:
:maxdepth: 1

Manage knowledge bases <knowledge-bases>
Manage data sources and documents <data-sources-documents>
Manage segments and processing tasks <segments-processing>
Manage semantic entries <semantic-entries>
```