Question: As part of the driver licensing system, the software needs to get information from other state's drivers license systems. Each one provides a different interface

As part of the driver licensing system, the software needs to get information from other state's drivers license systems. Each one provides a different interface for accessing their information. Which design pattern(s) would be worth using to help create a flexible design?

2. Which architectural layers are appropriate for the driver licensing software to have? What goes in each layer?

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