Increasing functional and non-functional requirements in automotive electric /electronic vehicle development will significantly enhance the integration of novel functions in the embedded networks. Major driving forces are the demand for driver assistance function, active and passive safety systems and the fulfillment of environmental and legal requirements. The contribution will demonstrate that this task in system design can only be managed, if the non competitive elements are developed together in automotive industry - leading to an infrastructure standard like e.g. in AUTOSAR, FlexRay and LIN. Working on such basis the OEMs can have a dedicated system design environment for the competitive implementations of functions already starting in early phases for feasibility studies. This basis is consequently a fix point through serial development and even in the maintenance phase and enables shared functional development and exploitation as well as in project adaptations of non-automotive industry driven hardware developments.