The parent VOB, \admin, contains one global type, RELEASE-2.1. \admin has two child VOBs, \admin_re and \admin_dev. \admin_re and \admin_dev are located under \admin. Two lightning bolt-shaped arrows that represent AdminVOB hyperlinks point to \admin from \admin_re and \admin_dev. \admin_re contains one global type, PATCH-2.1, in addition to the global type RELEASE-2.1 that it inherits from \admin. \admin_dev contains one global type, RELEASE-3.0, in addition to the global type RELEASE-2.1 that it inherits from \admin. \admin_re has one child VOB, \re. \re has one local copy each of the global types RELEASE-2.1 and PATCH-2.1. \admin_dev has one child VOB, \dev. \dev has one local copy each of the global types RELEASE-2.1 and RELEASE-3.0. lightning bolt-shaped arrows that represent AdminVOB hyperlinks point from \re to \admin_re and from \dev to \admin_dev. End of Figure 4.