Modular Monolith
Modular Monolith is a software architecture pattern that structures a monolithic application into distinct, loosely coupled modules, each with clear boundaries and responsibilities. It combines the simplicity and deployment ease of a monolith with the modularity and separation of concerns typically associated with microservices. This approach aims to improve maintainability, testability, and team scalability while avoiding the operational complexity of distributed systems.
Developers should consider Modular Monolith when building applications that need to scale in complexity and team size but don't yet require the overhead of microservices, such as in early-stage startups or projects with uncertain domain boundaries. It's particularly useful for scenarios where you want to enforce clean architecture, facilitate independent development by multiple teams on different modules, and potentially ease a future transition to microservices if needed, as seen in e-commerce platforms or enterprise SaaS applications.