Follow these steps to create the interface file:
- From the menu, select File > New > Other.
The New window opens.
- In the navigation tree, click Business Integration > Interface.
- Click Next.
- From the Module list, click BrokerageModule.
- In the Folder field, type com.emerged.brokerage.
- In the Name field, type BrokerageInterface.

The Namespace field is set to http://BrokerageModule/com/emerged/brokerage/BrokerageInterface.
- Click Finish.
The editor opens for BrokerageInterface.