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2. Open Developer Studio and select File -> New -> Other.
3. On the dialog box that appears, select Composite Application Project and click Next.
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4. Provide a suitable name for the Composite Application Project, for example, WS_NumberAdderCarbon. Click Finish.
5. A Composite Application Project is created and appears on the Project Explorer.
6. Create a new BPEL project. Right-click on the project in the Project Explorer and choose New -> BPEL WorkFlow.
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7. On the Create New BPEL Project wizard, select Create New BPEL workflow and click Next to continue.
8. Provide suitable names, a namespace and select the matching template for your BPEL process and project.
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17. Collapse the Output variable in the To section, and select result:string.
18. While you configure the variables, the editor will ask to initialize the variables. Click Yes. It will automatically generate an An xml string is automatically generated for variable initialization.
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20. Include the BPEL process as a dependency of the Carbon Composite Application (WS_NumberAdderCarbon). To include it, open the pom.xml of the Composite Application Project and select BPELNumberAdder as a dependency.
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