The Event-Driven Architecture Paradigm

When To Use

• Building async, loosely-coupled systems
• Systems with complex event processing pipelines

When NOT To Use

• Simple request-response applications without async needs
• Systems requiring strong transactional consistency

When to Employ This Paradigm

• For real-time or bursty workloads (e.g., IoT, financial trading, logistics) where loose coupling and asynchronous processing are beneficial.
• When multiple, distinct subsystems must react to the same business or domain events.
• When system extensibility is a high priority, allowing new components to be added without modifying existing services.

Adoption Steps

1. Model the Events: Define canonical event schemas, establish a clear versioning strategy, and assign ownership for each event type.