Command Query Responsibility Segregation (CQRS)
Command Query Responsibility Segregation (CQRS) is a [design principle] and [pattern] that proposes the separation of command handling (write) logic from query (read) logic. This allows for the independent optimization of both aspects, enhancing performance and scalability.
CQRS works well with event sourcing, as queries can be constructed from events, allowing for:
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Horizontal scalability: Read and write operations can be scaled independently.
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Eventual consistency: Although read views may not immediately reflect changes in state (as is typical in distributed software), they will eventually synchronize.