> ## Documentation Index
> Fetch the complete documentation index at: https://docs.nx1cloud.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Create a semantic model

> Create a semantic model to define business-friendly insights in a draft for later review by an administrator.

You can create a semantic model in NexusOne to turn datasets into business-friendly insights.
After creating a semantic mode, it becomes a draft that's submitted for review,
approved by an administrator, and then deployed.

## Prerequisites

* Appropriate permissions: `nx1_semantic_admin` or `nx1_semantic_modeller`
* An existing domain created using [DataHub](/platform-components/datahub)
* A previously ingested dataset within a DataHub domain

## Create a semantic model

<Tabs>
  <Tab title="Web portal" icon="browser">
    Perform these steps to create a semantic model.

    1. Log in to NexusOne.
    2. On the top navigation bar, hover your mouse over **Catalog & Models** and then select **Semantic Models**.
    3. At the top right corner of the page, click **Create Model**.
    4. Enter a model name.
    5. Select a DataHub domain.
    6. Optional: Describe the purpose of the semantic model.
    7. Select a catalog and schema.
    8. Select a table scope. Three table scope options are available:
       * **All tables**: NexusOne considers all tables
       * **Include only**: You manually include specific tables
       * **Exclude**: You manually exclude specific tables
    9. Optional: Select **Match from Catalog** to allow CrewAI to scan the domain catalog and auto-fill source
       tables, columns, and SQL based on your model definition.
    10. Select one or more source tables from the list.
    11. Click **Add Column** to manually enter new columns.
        When entering a column, enter the following:
        * Column name
        * Business name
        * Data type
        * Source table
        * Source column
    12. Enter a SQL command to define the semantic model.
    13. Click **Create Model**.

    After creating the semantic model, its status appears as a **Draft** for later review by
    an administrator.
  </Tab>

  <Tab title="REST API" icon="code">
    Use the following API endpoints to:

    * [Create Semantic Model](/api-reference/endpoints/semantic-models/create-semantic-model)

    If you are selecting an existing catalog, domain, schema, or table, you can use
    the following API endpoints to:

    * [Get catalogs](/api-reference/endpoints/metastore/get-catalogs)
    * [Get catalog schemas](/api-reference/endpoints/metastore/get-catalog-schemas)
    * [Get domains](/api-reference/endpoints/metastore/get-domains)
    * [Get tables](/api-reference/endpoints/metastore/get-tables)
  </Tab>
</Tabs>

## Additional resources

For an overview of the Semantic Models feature, refer to [Semantic Models overview](/documentation/catalog-and-models/overview/semantic-models).