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 BankModule.
- In the Folder field, type com.emerged.bank.
- In the Name field, type BankInterface.

The Namespace field is set to http://BankModule/com/emerged/bank/BankInterface.
- Click Finish.
The editor opens for BankInterface.