A device comprising: a communicator configured to connect to at least two Internet of Things, IoT, devices through a communication link and configured to receive service information from the at least two loT devices ; a memory configured to store the service information received from the at least two IoT devices ; an inputter configured to receive a user input requesting performance of a first predetermined function and an associated second predetermined function from the user; and a controller configured to: analyze the service information of the at least two IoT devices stored in the memory to select a first IoT device for performing the first predetermined function corresponding to the user input and a second IOT device for performing the second predetermined function corresponding to the user input; transmit an execution command for execution of the first predetermined function to the first IoT device ; receive the execution result of the first predetermined function from the first IoT device ; and transmit the received execution result and an execution command for execution of the second predetermined function to the second IoT device , wherein the service information comprises at least one of service identification information, device identification information, sensor data collected by a sensor, and operation information of the at least two IoT devices , wherein the first IoT device and the second IoT device are different. a communicator configured to connect to at least two Internet of Things, IoT, devices through a communication link and configured to receive service information from the at least two loT devices ; a memory configured to store the service information received from the at least two IoT devices ; an inputter configured to receive a user input requesting performance of a first predetermined function and an associated second predetermined function from the user; and a controller configured to: analyze the service information of the at least two IoT devices stored in the memory to select a first IoT device for performing the first predetermined function corresponding to the user input and a second IOT device for performing the second predetermined function corresponding to the user input; transmit an execution command for execution of the first predetermined function to the first IoT device ; receive the execution result of the first predetermined function from the first IoT device ; and transmit the received execution result and an execution command for execution of the second predetermined function to the second IoT device , analyze the service information of the at least two IoT devices stored in the memory to select a first IoT device for performing the first predetermined function corresponding to the user input and a second IOT device for performing the second predetermined function corresponding to the user input; transmit an execution command for execution of the first predetermined function to the first IoT device ; receive the execution result of the first predetermined function from the first IoT device ; and transmit the received execution result and an execution command for execution of the second predetermined function to the second IoT device , wherein the service information comprises at least one of service identification information, device identification information, sensor data collected by a sensor, and operation information of the at least two IoT devices , wherein the first IoT device and the second IoT device are different. <EOS>