Microservices can increase flexibility and scalability — but they also introduce distributed system complexity. Before adopting microservices, organizations should evaluate: * Team size and maturity * Deployment needs * Domain clarity * Operational readiness Sometimes a well-structured modular monolith provides more value than premature distribution. Architecture should serve business goals, not trends.
Modern systems must handle increasing scale, concurrency, and data flow. Event-driven architecture enables systems to evolve independently and process information asynchronously. Instead of tightly coupled service calls, systems communicate through events — immutable facts representing state changes. Benefits include: * Loose coupling * Independent scalability * Improved fault tolerance * Clear system evolution paths However,
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Technology changes. Architecture remains. Many engineering challenges do not originate from the choice of framework, but from structural decisions made early in the system’s lifecycle. Poor boundaries, tight coupling, and unclear ownership lead to systems that become fragile over time. Strong architecture focuses on: * Clear domain boundaries * Decoupled components