Controller Command and Task Command in WCS

Controller Command is the command that gets called upon a request, just like We have actions in struts and controller in Spring. Task is a step in this bigger process. Task command are the commands that perform specific task for a controller command, like service classes in other frameworks. In order to complete the request, a controller command may invoke multiple task commands.

In an MVC architecture perspective when a request is submitted the controller command is invoked and controller command may invoke multiple task commands for the execution of a specific service.