Title

AWS re:Invent 2023 - Using serverless for event-driven architecture & domain-driven design (NTA203)

Summary

Balachander Kilipudi, an AWS Solutions Architect, and representatives from Citi discuss the benefits of using AWS Serverless for event-driven architecture (EDA) and domain-driven design (DDD).
Citi's journey with AWS over the past year is highlighted, showcasing their transition from traditional systems to serverless, event-driven models.
The talk covers the importance of understanding business domains and events within those domains to innovate and provide better customer experiences.
Conway's Law is discussed, emphasizing the need for loosely coupled organizational and software structures to build scalable systems.
AWS Serverless is presented as a solution that enables orchestration of EDA, providing developer agility, scalability, fault tolerance, and lower total cost of ownership (TCO).
Examples of companies like Taco Bell, Lego, and Liberty Mutual are given to illustrate the benefits of AWS Serverless and EDA.
The concept of domain-driven design is introduced, focusing on the importance of aligning software design with business needs.
The talk concludes with insights into Citi's implementation of serverless and EDA, including their inventory system transformation and the cost-effectiveness of the solution.

AWS Serverless and EDA are powerful tools for modernizing enterprise IT infrastructure, allowing businesses to focus on innovation and business logic rather than server management.
The transition to serverless and EDA can lead to significant cost savings, as demonstrated by Citi's inventory system overhaul, which was both quick to develop and inexpensive to run.
Domain-driven design is crucial for creating software that aligns closely with business objectives and customer needs, leading to better user experiences and more strategic business outcomes.
Conway's Law highlights the mirroring of organizational structure in software design, suggesting that a loosely coupled organization will likely produce a more scalable and flexible system.
The use of AWS Serverless and EDA can help organizations avoid common pitfalls such as tightly coupled systems, which can hinder innovation and increase risk.
The collaboration between AWS ProServe and Citi's teams was instrumental in navigating the vast array of AWS services and selecting the right solutions for their specific challenges.
The talk underscores the importance of continuous learning and adapting to new technologies, as well as the value of having a strategic approach to technology adoption within an organization.