In a world where the development has to be incredibly fast-paced in-order to success in the market, the importance of a definition of an architecture plays an very important role in integration of the product into the target hardware and which thereby involves the extension of the product development from a simulation environment into HIL environment and the subsequent extension into the vehicle. This paperwork revolves around architecture definition for an autonomous driving car that utilizes the virtual simulation environment for development and permits the extension to processes that comes later in the development of the project and the eventual deployment.