**7.1.1 Assessment of ADMIN-ROLES**

Although ADMIN-ROLES is a yearly usage system (with roll-over), higher activities are concentrated during the months of August and September. We noticed that there were four intersecting points in 2008 where the SV transitions occurred between the segments were T+-, T++, T-+ and T+-, respectively. The causes C1..n include the access patterns and the perceived changes in USI values over a year. At the intersecting points, the rates are the same and ideally we would expect the same rate of change in both TC and SV. However, due to various environmental factors both of these metrics vary and their patterns change during the segmented time frame. Moreover, the projected trend lines intersecting in 2008 and 2009 yearly cycles indicate the instability in system state. But, in 2010 there were no intersections with increasing disparity between TC and SV. Regression analyses in table 4 shows close ties between TC and SV in 2008 and 2010 and incidcates environmental disturbances in 2009.
