UI management server and method of controlling the same

A user interface (UI) management server, comprising a server comprising a non-transitory computer-readable medium, a communication unit and a controller to

• receive registration information of an Internet of Things (IoT) device from an IoT management server so as to be able to collect information regarding the IoT device
• classify the IoT device into at least one group using the registration information;
• determine a plurality of different button icons matching the IoT device according to property information of the classified at least one group;
• calculate size information and arrangement information of the plurality of button icons based on the number of the plurality of button icons and a frequency of use of each of button icon of the plurality of button icons;
• transmit the determined plurality of button icons, the calculated size information, and the calculated arrangement information to a designated vehicle for display;
• and
• determine what is to be displayed on the display of the designated vehicle based on the number of the plurality of button icons so that, when the number of the button icons is less than or equal to a predetermined value, the designated vehicle displays the plurality of button icons according to the calculated size information and the arrangement information of the number of the plurality of button icons, and when the number of the plurality of button icons is greater than the predetermined value, the designated vehicle displays only a name of the IoT device as text without displaying the button icons.