Solution architecture.
People don't need systems to do things. They need things done. Business keeps running without interruptions, and new ideas get room to be tested; the architecture has to hold both, for everyone in the loop: stakeholders, operations, and the team building it. My part is caring about the things nobody else in the room should have to care about: the system landscape, scale, security, whether things stay easy to develop, maintain, and extend. Everyone else gets to care about results.