This illustration shows the four phases of the Wireless in-place upgrade. The Wireless component uses the Oracle RDBMS, while other iAS components use the Infrastructure metadata repository. In the first phase, iAS 1.0.2.2.x is shown accessing the Oracle RDBMS. Second, iAS 1.0.2.2.x is shown accessing the Oracle RDBMS, with an adjacent iAS 9.0.2.0.x installation accessing the metadata repository. Third, iAS 9.0.2.0.x is reconfigured, so that it can access the Oracle RDBMS containing the Wireless data. Fourth, the 1.0.2.2.x installation is decommissioned.