What's the difference between events and messages?

Events: notifications that something happened (past tense, broadcast to anyone interested). Messages: directed communication asking for action (imperative, specific recipient). The lines blur in practice.

How do I handle event ordering?

Depends on requirements. Options: partition by key (order within partition), sequence numbers, event timestamps, or design for out-of-order tolerance. Strict global ordering is expensive.

What about duplicate events?

Assume they'll happen. Design consumers to be idempotent (same result if processed twice). Use event IDs for deduplication. "At least once" delivery is easier than "exactly once."

How do I debug event-driven systems?

Comprehensive logging with correlation IDs. Event replay capabilities. Distributed tracing. Dead letter queues for failed events. Without good observability, debugging is very hard.

Book Free Assessment Calculator

Event-Driven Automation

Automation triggered by real-time events rather than schedules. Responds immediately when something happens - a form submission, database change, or API call.

In-Depth Explanation

Event-driven automation responds to events as they happen, enabling real-time processing and immediate reactions. It's the foundation of responsive, modern automation.

Event-driven characteristics:

Reactive: Responds to events, not time
Real-time: Immediate or near-immediate processing
Scalable: Handle varying event volumes
Decoupled: Event producers don't know about consumers

Event types:

User actions: Form submissions, button clicks
Data changes: Record created, updated, deleted
System events: File uploaded, payment received
External: Webhook calls, email received
Integration: API calls, message queue items

Event-driven patterns:

Event notification: Something happened
Event-carried state transfer: Event contains all needed data
Event sourcing: Reconstruct state from event history

Architecture components:

Event producers (sources)
Event broker/bus
Event consumers (handlers)

Business Context

Event-driven automation enables immediate customer responses, real-time data sync, and responsive operations - critical for competitive customer experience.

How Clever Ops Uses This

We architect event-driven solutions for Australian businesses, enabling real-time automation that responds instantly to business events.

Example Use Case

"When a customer submits a support form, automation immediately: creates ticket, enriches with customer data, routes to appropriate agent, and sends acknowledgment."