In reply to ssubramaniam:
The UVM reference manual is your source. connect_phase() is a virtual method of uvm_component, and connect() is a method of uvm_port_base. They are two different methods of two different classes. The OVM was even more confusing because it use the same method name connect() in two different classes.
Sometimes, its difficult to keep all the method names unique, especially when different people have their hands many areas of the code.