AUTOSAR defines Software Components (SWCs) as the application software that runs on the ECU. In AUTOSAR, software components make up the technology that hosts the application software. A software component is an abstraction that allows parts of application software functionality to be encapsulated. The encapsulation reduces the component’s dependence on the environment in which it executes. This means that a software component should run on any ECU compatible with AUTOSAR, provided the application environment remains unchanged.