What architectures have you worked with? How was the decision made to split a monolith into microservices?

Worked with monolithic and microservices architectures. When deciding to split a monolith into microservices, several factors were considered:

• Scalability: if different parts of the application require different levels of scaling.
• Team independence: so that different teams can work autonomously on their services.
• Complexity and cohesion: if parts of the monolith are loosely coupled and have clearly defined business functions.
• Frequency of changes: modules that change frequently are beneficial to isolate into separate services.
• Technological requirements: if different parts require different technologies or databases.

The process usually started with analyzing business domains (Domain-Driven Design), identifying bounded contexts, and defining service boundaries. Then, functionality was gradually extracted from the monolith, ensuring backward compatibility and minimizing risks.