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2. High-Level Architecture and Use Cases

The overall Use Case Flow (DMAAP <--> SDNR/A1 REST Adapter <--> A1 Mediator) is as follows:

1. Any ONAP or micro-service that wants to perform any policy management related activity will publish a DMAAP message, with appropriate request
2. DMAAP listener will consume the DMAAP message and invoke RPC against A1 Adapter
3. A1 Adapter, based on the received DMAAP message/RPC, will invoke corresponding REST API's against A1 Mediator in Near-RT RIC

The picture below depicts overall use case flow

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3. High-Level Design Approach

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4. North-bound RPC YANG Model

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