Event-Driven Architectures: Orchestrating Cloud Native Workflows
A Conf42 Cloud Native 2024 session focused on practical event-driven architecture patterns, workflow orchestration with Step Functions, and design guidance for resilient cloud-native systems.
Topic: Designing scalable cloud-native systems with event-driven patterns, choreography, and orchestration
Target audience: Cloud Architects, Backend Engineers, DevOps and Platform Teams
Location: Conf42 Cloud Native 2024 (Online)
Related stack: AWS, EventBridge, Step Functions, Serverless
Event link: https://www.conf42.com/Cloud_Native_2024_Md_Mostafa_Al_Mahmud_eventdriven_architectures_orchestrating
Abstract
Unlock the power of event-driven architectures in the cloud through seamless workflow orchestration, modern cloud-native patterns, and practical strategies for building scalable and resilient systems.
Session summary
This session explains why modern applications are naturally event-driven and how placing events at the center of architecture enables:
- Independent feature development.
- Easier cross-service integration.
- Loose coupling and modularity.
- Better scalability and adaptability.
It walks through choreography and orchestration as complementary communication models for distributed systems, and explains when to use each model or combine both in real-world designs.
The talk also highlights bounded contexts from domain-driven design, event-streaming patterns, and reliability fundamentals such as idempotency and event ordering for consistent operations.
Practical architecture guidance
A major implementation focus is Step Functions with EventBridge for low-code, loosely coupled workflow integration, including KYC-style process modeling and decision-driven orchestration paths.
Key practical points include:
- Choosing Standard vs Express Step Functions based on workload behavior.
- Integrating human-in-the-loop decision points where needed.
- Using Map states for parallel item processing.
- Applying event storming and shared language practices during design.
Why this matters
By combining choreography and orchestration intentionally, teams can build cloud-native systems that are robust, scalable, and easier to evolve over time.