A façade pattern provides a simple interface to a complex system, making it easier for the client or external world to use.
In UVM world, if we have to send sequences across different agents in a coordinated manner the top level sequence would need to refer to multiple agents.
Façade Pattern which is a Gang of Four's structural pattern helps solve the problem of providing a simple interface to a complex system. It can provide an entry point to multiple environments from the top level.
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