The 7th International Workshop on Automotive System/Software Architectures (WASA) has been organized with the International Conference on Software Architecture (ICSA 2021) on March 22-26, 2021. Bringing together researchers and practitioners in the area of automotive system/software architecture and engineering, the goal of this workshop is to address issues related to the appropriate automotive system/software architecture and engineering techniques, which can be accepted by the automotive industry. During this event TEACHING has been presented by our partners from AVL and TUG presenting their work with the title “A Rapid Prototyping System, Intelligent Watchdog and Gateway Tool for Automotive Applications”.