The image shows the Oracle MAA Platinum reference architecture at a high level.

The diagram consists of two main horizontal sections: a Primary Region on top and a Remote Region on the bottom.

Primary Region

Remote Region

Finally, between the AD1 in the Primary Region and AD2 in the Remote Region there is a bidirectional arrow labeled Oracle GoldenGate Replication, indicating that bi-directional GoldenGate replication is taking place between the Primary Database of each region.