What is UVM/OVM?

UVM (Universal Verification Methodology) and OVM (Open Verification Methodology) are methodologies for verifying hardware designs, primarily digital integrated circuits. UVM is the dominant standard now, and builds upon OVM. UVM provides a standardized approach to creating reusable verification environments using SystemVerilog. It defines a class library and coding guidelines that facilitate building testbenches with reusable components, such as drivers, monitors, scoreboards, and sequencers. UVM promotes modularity, reusability, and scalability in verification efforts, leading to more efficient and robust verification.