About the IDO request XML schema
The IDO request XML schema is the native Mongoose format for the IDO request interface. The Mongoose user interface uses this transport format for all aspects of the execution of the UI. The other options provided for the IDO request interface, such as REST, SOAP, and .NET class library, are mappings to and from this protocol.
Understanding the IDO request XML schema is helpful even if you are leveraging other options, because the schema shows all the actual capabilities. You can wiretap a session in your application and see this format of the traffic between the client and application server. You can also use this format directly, by sending and receiving these XMLs to the Mongoose web server from custom client code.