Suggest how the SimpleInterestCalculator service could be implemented as a RESTful service. What is a workflow? List out the key stages in the process of system construction by composition. Design...

Suggest how the SimpleInterestCalculator service could be implemented as a RESTful service. What is a workflow? List out the key stages in the process of system construction by composition. Design possible input and output messages for the services shown in Figure 18.13. You may specify these in the UML or in XML.