Who drew the architecture after moving to microservices?

After migrating the system to a microservices architecture, the architecture is usually designed by a team of architects together with system analysts and lead developers. It is important that specialists who understand business logic and technical constraints well participate, as microservices require clear delineation of responsibilities and interactions between services. Often, a dedicated microservices architect or technical lead is appointed to ensure the integrity of the architecture and its documentation.

During the architecture design process, the following are considered:

• service boundaries (bounded contexts);
• communication methods (REST, gRPC, messages);
• data schemas;
• requirements for fault tolerance and scalability;
• security and monitoring.

For visualization, UML diagrams, data flow diagrams, and specialized tools like C4 Model are used.