Abstract: A theme change system includes a portable communication device; and a server apparatus, wherein the portable communication device and the server apparatus are connected to each other via a communication network. The portable communication device includes a theme request section making a request for theme data related to an interface between a user and a process execution part for performing processing in accordance with a request from the user to the server apparatus, a theme management section determining permission and non-permission about the reception of the theme data requested by the theme request section and storing, in a storage section, the theme data, and an interface output section outputting the interface on the basis of the theme data when the process execution part is started or while the process execution part is being started. The server apparatus includes a transmission section transmitting theme data to the portable communication device.

Abstract: An information providing system includes a portable terminal including an IC chip, and an information providing apparatus that carries out wireless communications with the IC chip. The information providing apparatus includes a browser that reads content and that outputs the content on a screen based on screen-output control information embedded in the content data and defining an output format or a data structure of the content, and a wireless communication unit that carries out wireless communications with the IC chip. In the content data, transmission target information to be transmitted to the portable terminal, and transmission control information instructing transmission of the transmission target information, are also embedded. The browser instructs the wireless communication unit to transmit the transmission target information to the portable terminal based on the transmission control information.