The AUTOSAR Classic Platform architecture distinguishes on the highest abstraction level between three software layers that run on a microcontroller: application, runtime environment (RTE) and basic software (BSW).
AUTOSAR经典平台架构区分了在微控制器上运行的应用、运行时环境（RTE）和基础软件（BSW）这三个软件层之间的最高抽象级。