Did not know what CQRS is, did some light googling[1]: CQRS (Command and Query Responsibility Segregation) is an alternative to a simple CRUD-based database in

Did not know what CQRS is, did some light googling[1]: CQRS (Command and Query Responsibility Segregation) is an alternative to a simple CRUD-based database interface. CQRS separates reads and writes into different models, using commands to update data, and queries to read data. Commands should be task-based, rather than data centric. ("Book hotel room", not "set ReservationStatus to Reserved"). Commands may be placed on a queue for asynchronous processing, rather than being processed synchronously. Queries never modify the database. A query returns a DTO that does not encapsulate any domain knowledge. The models can then be isolated, as shown in the following diagram, although that's not an absolute requirement. [1]