someone still had to keep oversight of the system as a whole and ensure subsystems integrated and interacted according to the desired user experience, performance, and reliability. Therefore, specific roles were created, such as system architects, system owners, or integration leads. Crucially, people in these roles work across the entire project/organization sort of like “communication conduits,” with direct and frequent interaction with feature teams. They support them on cross-subsystem concerns (such as interfaces and integration) to allow them to maintain a regular feature delivery
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