Digital signage is a broad depiction of a new media using a variety of technologies. In general, digital signage leads to an electronic media centrally controlled by a server and can be accessed by the player/client, and the content can be sent to multiple displays at the same time. With a system consisting of a composition of server/PC, monitor/TV, and software, digital signage has the capability to change and edit the message and information. Given the importance of digital signage that has a function as a support in the area of advertising media, the development has been done by many people. Digital signage is web-based software that consists of client and server. Communication between client and server is conducted using a technology called web service implementation with SOAP which allows the exchange of data in the form of XML. Method of developing digital signage software is done using Rational Unified Process (RUP).