Event Driven Architecture

Course Objective
This workshop equips participants with a practical approach to evolve systems safely from a monolith
toward Event-Driven Architecture (EDA). Participants will learn how to reduce tight coupling, remove
long synchronous dependency chains, and design reliable asynchronous flows using proven patterns and
hands-on refactoring exercises.

Learning Outcomes
By the end of this workshop, participants will be able to:
1. Explain key principles of Event-Driven Architecture and identify suitable use cases.
2. Differentiate and apply Command, Event, and Query appropriately in system design.
3. Design modular boundaries and event flows that reduce synchronous dependencies.
4. Define event contracts, including naming conventions, payload structure, and versioning approach.
5. Apply CQRS and read model patterns to support fast reads and reduce runtime coupling.
6. Design for asynchronous reliability, including retries, idempotency, DLQ, and replay.
7. Compare choreography and orchestration and select an appropriate coordination approach.
8. Address distributed consistency challenges using Saga/compensation and the Outbox pattern.
9. Produce an incremental migration plan from monolith to modular monolith and event-driven
architecture.

Tools and Technology

Workshop Agenda
Day 1 — From Monolith to Modular Monolith
Topics

Hands-on Workshop
Refactor a monolith into a clean modular monolith with a clear internal event flow.

Day 2 — From Modular Monolith to Event-Driven System
Topics

Hands-on Workshop
Extract modules into services, introduce messaging, and handle duplicates, retries, and failure scenarios