In reply to Anudeep J:
The end_of_elaboration_phase follows after the connect_phase. There is the whole dynamic testbench environment created and connected. In the end_of_elaboration_phase the environment is checked. The user can use this phase to make certain settings or extract information which require the existence of the dynamic part of the testbench completed. Personally I use this phase to print the topology of my class-based environment and to assign the reporting verbosity.