Systems Integration and Coordination Questions

Designing and engineering systems composed of multiple interacting technology components. Covers application programming interface design and contract management, message based integration and event driven patterns, data synchronization and consistency strategies, versioning and compatibility approaches, deployment and release coordination, integration testing and staging validation, observability and monitoring of interactions, error handling and retry policies, transactional and consistency boundaries, dependency mapping and governance, security boundaries and intercomponent authentication and authorization, and rollback and migration approaches to reduce risk.