Fig. 1. Syntax definition for the activity and the sub-process.

Fig. 2. Data flow graph syntax example.

Fig. 3. Control flow graph syntax example. Here task boxes contain the name of the task and the name of the program (or process) to be invoked. Activity2 and Activity3 are marked with the condition icon.

Fig. 4. Control flow with exception handler.

Fig. 5. Data flow view of the example ConvertQuote process.

Fig. 6. Data flow view of the example ConvertAmount process.

Fig. 7. Data flow view of the example StockQuoteConvert process.

Fig. 8. Data flow syntax of the list-based loops.

Fig. 9. Data flow graph of a process to compute the factorial of an integer value.

Fig. 10. Example of system parameters and properties.

Fig. 11. Data flow view of the late binding example.

Fig. 12. Data flow view of the cluster resource reservation example.

Fig. 13. Example of XML processing with the JVCL– this process retrieves the URLs returned by a Google search.

Fig. 14. Example of XML processing with the JVCL and X-Path.

Fig. 15. Data flow view of the Conversation process.

Fig. 16. Control flow view of the Conversation process.

Fig. 17. Screenshots of JOpera's visual environments.