"In today's fast-paced digital landscape, building agile, scalable and maintainable software systems is paramount. Organizations often start with monolithic applications for their simplicity, but soon face challenges as these systems grow more complex. A distributed monolith, where the application is split into components but remains tightly coupled and interdependent, can hamper agility and scalability. Transitioning from this state to a composable architecture on AWS empowers teams to deliver resilient, scalable and business-aligned software solutions."
"A distributed monolith is a system composed of multiple services or components, deployed independently but tightly coupled through synchronous dependencies such as direct API calls or shared databases. Unlike a true microservices architecture, where services are autonomous and loosely coupled, distributed monoliths share many pitfalls of monoliths, including: Tight coupling: Components depend heavily on the internals of others, creating fragile dependencies. Deployment friction: Changes require coordinated deployments across services. Operational complexity: Dysfunctional distributed components make troubleshooting and scaling difficult."
Distributed monoliths are composed of multiple services deployed independently but tightly coupled via synchronous dependencies such as direct API calls or shared databases. They produce tight coupling, deployment friction, operational complexity, and slow innovation. Composable architecture embraces modularity, loose coupling, domain-driven design, and autonomous services. On AWS, teams can implement composable patterns using managed services, event-driven integration, API gateways, and bounded contexts to decouple systems. Operational practices include observability, automated CI/CD, and progressive decomposition. The transition improves scalability, resilience, independent deployability, and faster delivery of business-aligned features.
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