Event-Driven Architectures and Effective Coupling Management

It’s essential to revisit the fundamentals of system design and start anew.

It has taken over two decades for events to become a core principle in system design. Many believed that remote object calling was the way to go. REST and web services exposed the API as a concern through a synchronous protocol.

Is important to recognize that most of the world still uses traditional systems. We must consider event-driven architectures in traditional systems. Effective coupling management is crucial for cost efficiency in event-driven systems.

Adhering to the open-close principle can save expenses by avoiding unnecessary code changes. This reduces the need for rework of the underlying data relational model. Using pub-sub and other techniques that fit our diverse models and language is beneficial.

The common thread among many modern problems is their dependence on real-time events. So, we must bridge the gap between conventional and event-driven systems.

A clear view of the workflow enables feature completion tracking without code revisiting. Event modeling can be used in non-event-driven systems to achieve this goal. Omit system storage. Store a hash to identify mismatches between the system’s state and the actions people take with it. This is especially important in traditional systems that are not event-driven.

[¹]: Building Event-Driven Microservices: Leveraging Organizational Data at Scale