Importing and Assigning Data Types 
In this step you import an XSD file and assign a data type to the model data objects to make your model work. The XSD file defines the data types you assign.
Procedure
Importing an XSD file
In the Developer Studio, choose
File 
Import
.In the dialog box that appears, expand Web services and choose XSD. Choose the Next pushbutton.
Define an output folder for the XSD file. To do that, choose Browse, expand your glx project and navigate to the src\wsdl folder. Choose the OK pushbutton.
From the Available XSD sources, select Remote Location / File System and choose the Next pushbutton.
Choose the Browse pushbutton and navigate through the file system to select the XSD file to import. Choose the Open pushbutton and then choose the Finish pushbutton.
The XSD file appears in your glx project, in the
Process Modeling Data
Types XSD Files folder.
Assigning a Data Type
In the modeling surface, choose the Book_order_details data object.
In the Properties view, choose Data Type.
In the Data Type field, select a data type from the dropdown menu.
Assign a data type to the Book_replenishment_form and Customer_details_form data objects. To do that, repeat the above steps.
Result
You have imported an XSD file and have assigned a data type to a data object in your process model.