# Predefined Component Classes

Components form the foundation of the UVM. They encapsulate behavior of drivers, scoreboards, and other objects in a testbench. The UVM library provides a set of predefined component types, all derived directly or indirectly from uvm_component.

#### Predefined Components

Summary

Predefined Component Classes
Components form the foundation of the UVM.

> virtual class uvm_component extends uvm_report_object

The uvm_component class is the root base class for UVM components.