Navigate to Data > Business Domain, and click the "Create Business Domain" button in the upper-right corner of the page.
In the creation form, fill in the following information:
Name: The name of the business domain, used for identification (within 50 characters).
Referenced Data Source: Select a connected data source from the dropdown list as the data foundation of this business domain.
Description (optional): Briefly describe the purpose of this business domain (within 200 characters).
Prompt (optional): You can enter prompt text for the business domain (within 2000 characters).
After creation is completed, you can enter the business domain management interface. You can start adding data tables, defining relationships, creating parameterized templates, and reference templates.