Abstract: A mobile telecommunications terminal is disclosed, in which an adaptive software development platform corresponding to user interface (UI) or man machine interface (MMI) is effective for the development of application programs and fast changing product specification. The mobile communication terminal having a adaptive software development platform, wherein the platform comprises: an events buffer for storing the signals and events generated by a terminal operating system (OS); an event processor for handling the signals and the events output from the events buffer and for transmitting the signals and events to a corresponding application; and a window manager for providing resources operated by the event processor and controlling the terminal applications operations.