The Modular Monolith Paradigm

When To Use

• Organizing large codebases into well-bounded modules
• Teams wanting microservice boundaries without distributed complexity

When NOT To Use

• Already distributed as microservices
• Tiny applications where module boundaries add unnecessary complexity

When to Employ This Paradigm

• When you desire team autonomy similar to that of microservices, but without the operational overhead of a distributed system.
• When release velocity is slowed by tangled dependencies between internal modules.
• When a monolithic architecture is simpler to operate today, but there is a clear need to evolve toward a service-based model in the future.

Adoption Steps

1. Identify Modules: Define module boundaries that align with distinct business capabilities or Bounded Contexts from Domain-Driven Design.