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From the answers on "Which Clean Architecture Areas do Gateways interfaces and their implementations belong to?" question I knew that gateways interfaces (well, the gateways are the interfaces but it is not obvious) are belong to use cases layer (the red ring) of the Clean Architecture diagram, while the implementations of these interfaces are in the interface adapters layer.

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Following this logic, the gateways interfaces (I suppose it is the same thing as Request and Response Models) are the part of the use cases. But if so, why the Use cases and Request and Response Models are the different sections of the Chapter 20 Business Rules?

Takesi Tokugawa YD
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  • The red ring is named "Application Business Rules"; "Use Cases" is an item _inside_ the ring. That doesn't really answer the question, though, because "Request and Response Models" are nowhere to be seen. – IMSoP Oct 11 '22 at 10:25

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