> ## Documentation Index > Fetch the complete documentation index at: https://docs.getcollate.io/llms.txt > Use this file to discover all available pages before exploring further. # Domains > Organize datasets into domains to group related data assets, assign responsibilities, and support distributed data ownership. # Domains Domains group related data assets under a common area of ownership. Use them to organize your data catalog by business area, assign accountability, and control access. ## Add a Domain Follow these steps to create a new domain in Collate. ### Step 1: Access Domains 1. In the left navigation bar, click **Data Marketplace** > **Domains**. Access Domains 2. Click **Add Domain**. The Add Domain panel opens. Add Domain form ### Step 2: Enter Domain Details * **Name** (required): Enter a unique identifier for the domain. Letters, numbers, hyphens, and underscores only; maximum 128 characters. * **Display Name**: Enter a human-readable label shown throughout the Collate UI. * **Description** (required): Write a description that explains the domain's purpose, the types of data it contains, and any relevant context for other users. * Optionally, upload a **Cover Image** as a banner for the domain page, and select an **Icon** and **Color** to visually distinguish the domain in the catalog. ### Step 3: Add Tags and Glossary Terms * **Tags**: Select classification tags to categorize the domain. * **Glossary Terms**: Link the domain to relevant glossary terms. ### Step 4: Select a Domain Type Choose the type that best describes the domain's role in your data architecture: | Type | Description | | -------------------- | ---------------------------------------------------------------------------------------------------- | | **Source-aligned** | Domains tied to online services and transactional databases, including event and transactional data. | | **Aggregate** | Domains that curate data from multiple source-aligned domains, such as Customer 360. | | **Consumer-aligned** | User-facing domains combining data from multiple domains for business users or data citizens. | ### Step 5: Assign Owners and Experts * **Owners**: Select users or teams responsible for managing the domain. * **Experts**: Select individual users with deep domain knowledge who can answer questions from other users. ### Step 6: Save Domain Click **Save**. The domain appears in the Domains list. ## Add Data Assets to the Domain **From Domain Details Page** 1. On the **Domains** page, select the domain. 2. Click **Add**, then select **Assets**. Add Assets 3. Search for assets, or use the filters (entity type, owner, tag, tier, service, service type) to narrow the results. Add Assets panel on a domain, with search and filters 4. Select the assets to include, then click **Save**. **From Data Assets Details Page** After creating the domain, navigate to any data asset and assign it to the domain from its details page. 1. In the left navigation bar, click **Explore**. 2. On the **Explore Assets** page, find and open the asset to which you want to set the domains. 3. Click the Edit icon next to the **Domain** header. Edit asset domain 4. Select the domains and click **Update**. Select domain ## Domain Details Page Open a domain from the **Domains** page to view its details, manage its assets, and track changes. Domain Details Page ### Domain Tabs A domain's detail page organizes its information into tabs: * **Documentation**: The default tab. View and edit the domain's description, and manage its Owners, Experts, Domain Type, Tags, and Tier from the side panel. * **Sub Domains**: Lists the domains nested under this one. Add a sub domain directly from this tab. * **Data Products**: Lists the data products that belong to this domain. Add a data product directly from this tab. * **Activity Feeds & Tasks**: Shows conversations, tasks, and activity history related to the domain. * **Assets**: Lists the data assets assigned to this domain. * **Custom Properties**: Shows any administrator-configured custom property fields for the domain. * **Data Observability**: Displays data quality and incident information for the data product's assets. ### Domains Actions * **Votes**: The thumbs-up and thumbs-down icons let users upvote or downvote the data product, helping the team signal its quality and trustworthiness at a glance. * **Version**: Shows the data product's current version number. Click it to open the Version History panel. See [Data Asset Versioning](/ai-2-0/how-to-guides/guide-for-data-users/versions) for details. ## Manage a Domain To rename, restyle, delete, or set up announcements for a domain, click the **⋮** menu next to **Add**: * **Announcements**: Set up banners to inform your team of upcoming maintenance, updates, or deletions. * **Rename**: Rename the domain's Name and Display Name. * **Style**: Change the domain's icon and badge color. * **Delete**: Permanently delete the domain and its metadata. Domain more actions menu with Announcements, Rename, Style, and Delete ## Filter Data Assets by Domain on the Explore Page On the **Explore Assets** page, use the domain filter in the left panel to view all assets assigned to a specific domain. Filter domain Watch the video below to see domains in action.