What is CQRS (Command Query Responsibility Segregation)?
A pattern that uses separate models for reading data and writing data.
Why It Matters
CQRS allows you to optimise reads and writes independently, which can improve performance in complex applications.
Real-World Example
Using a fast read-optimised database for product listings and a separate write-optimised store for order processing.
“Understanding terms like CQRS (Command Query Responsibility Segregation) matters because it helps you have better conversations with developers and make smarter decisions about your software. You do not need to be technical. You just need to know enough to ask the right questions.”
Related Terms
Event-driven Architecture
A design pattern where components communicate by producing and reacting to events rather than direct calls.
Microservices
An architecture where an application is built as many small, independent services that work together
Domain-Driven Design (DDD)
An approach to software design that organises code around real business concepts and processes.
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Related Terms
Microservices
An architecture where an application is built as many small, independent services that work together
Event-driven Architecture
A design pattern where components communicate by producing and reacting to events rather than direct calls.
Domain-Driven Design (DDD)
An approach to software design that organises code around real business concepts and processes.
Monolith
An application where all features are built and deployed as a single unit
Static Site
A website with pre-built pages that are the same for every visitor
SSR (Server-Side Rendering)
Generating web pages on the server for each request, then sending complete HTML to the browser