The current manufacturing technology allows the integration of a complex multiprocessor system on one piece of silicon (MPSoC for Multiprocessor System-on-Chip). One way to manage the growing complexity of these systems is to increase the level of abstraction and to address the system-level design. In this paper, the authors focus on the implementation in SystemC language with TLM (Transaction Level Model) to model an MPSOC platform. Their main contribution is to define a comprehensive, fast and accurate method for designing and evaluating performance for MPSoC systems.