# Semantic entries

List, create, update, delete, import, export, and validate semantic entries in a knowledge base. Choose the action page for the entry operation you need.

## Choose a task

| Task | Description |
| --- | --- |
| [Browse business definitions](https://omnifabric.cloudsigma.com/docs/reference/api/ai-studio/resource-center/knowledge-bases/list-semantic-entries.html.md) | Lists business definition entries in the knowledge base in pages. |
| [Add a business definition](https://omnifabric.cloudsigma.com/docs/reference/api/ai-studio/resource-center/knowledge-bases/create-semantic-entry.html.md) | Create semantic configuration entries to supplement data tables with definitions of fields, indicators, associations, and business rules. |
| [Replace an entry definition](https://omnifabric.cloudsigma.com/docs/reference/api/ai-studio/resource-center/knowledge-bases/update-semantic-entry.html.md) | Updates a semantic entry with the complete entry definition. |
| [Remove a business definition](https://omnifabric.cloudsigma.com/docs/reference/api/ai-studio/resource-center/knowledge-bases/delete-semantic-entry.html.md) | Delete a semantic entry in the knowledge base. |
| [Import business definitions](https://omnifabric.cloudsigma.com/docs/reference/api/ai-studio/resource-center/knowledge-bases/import-semantic-entries.html.md) | Batch import semantic entries into a knowledge base without semantic entries. |
| [Export business definitions](https://omnifabric.cloudsigma.com/docs/reference/api/ai-studio/resource-center/knowledge-bases/export-semantic-entries.html.md) | Export knowledge base definitions and semantic entries for review or migration. |
| [Check business-definition validity](https://omnifabric.cloudsigma.com/docs/reference/api/ai-studio/resource-center/knowledge-bases/validate-semantic-entries.html.md) | Verify whether the current knowledge base and its semantic entries comply with the server contract. |