As computer systems and netw orks have evolved and grown mo re co mplex , therole of the IT departm ent in mo st companie s has transform ed primaril y toensuri ng that they continue to ope rate without disrupt ion. IT spen ding, asreport ed by a variety of studies, shows the trend that most of the expensesassoci ated with IT are relat ed to the task of operating and managi ng install edcompu ter syst ems an d applic ations. Furtherm ore, the growth in that expensecategor y is outst ripping the expense associated wi th developi ng ne w a pplica-tions . As a consequ ence, there is a pressing need in the co mpanie s and organ iza-tions to find qualified people who can man age the inst alled base of computersystems and ne tworks. This marks a signifi cant shift from the previous trend incompan ies wher e the bulk of the IT dep...