  Nowadays, the use of mobile applications and terminals faces fundamental
challenges related to energy constraint. This is due to the limited battery
lifetime as compared to the increasing hardware evolution. Video streaming is
one of the most energy consuming applications in a mobile system because of its
intensive use of bandwidth, memory and processing power. In this work, we aim
to propose a methodology for building and validating a high level global power
consumption model including a hardware and software elements. Our approach is
based on exploiting the interactions between power consumption sub-models of
standalone systems in the perspective to build more accurate global model. The
interactions are studied within the exclusive context of video streaming
applications that are one of the most used mobile applications.
