1. A method of generating a task in a network including at least one task generating device and at least one task performing device, the method comprising: fetching a task generator from the at least one task performing device according to a request to control the at least one task performing device via a user interface (UI) of a task generating device among the at least one task generating device, the task generator is based on at least one action of the at least one task performing device; displaying a control menu via the UI, the control menu including at least one service item based on the fetched task generator; generating the task by the task generating device based on the fetched task generator corresponding to a service item being selected from the at least one service item included in the control menu, and transmitting the generated task from the task generating device to the at least one task performing device, wherein the task generator includes unique identification information, a display message, and task generating regulations, wherein the task generating regulations include information necessary for generating at least one of a first task, a second task, and a third task, wherein the first task includes at least one action combining actions of the task performing device based on service standards between the task performing device and the task generating device, the second task includes at least one action combining the at least one newly action of the task performing device and the at least one action based on the service standards, and the third task includes at least one action combining newly actions of the task performing device.