In web app development company boardrooms, architects and engineers are debating old assumptions. Scaling up isn’t just about faster servers or better caching anymore. It’s about reshaping how systems think. CQRS (Command Query Responsibility Segregation) and Event Sourcing are no longer fringe ideas. They’re becoming default choices in high-concurrency systems where consistency, auditability, and performance are non-negotiable.
This article doesn’t aim to preach. It exists to explain why these patterns are being adopted, how they work in practice, and where they help solve problems that traditional CRUD-based models keep tripping over.
The Problem