This study examines the evolving dynamics of the Unix server market. According to Beatriz Valle, analyst for IDC European Systems and Infrastructure Solutions team, "The Unix market is becoming intensely competitive and vendors need to leverage both their technology and their sales and channel expertise if they want to keep their share of this market. Unix revenue in Western Europe was overtaken by Windows for the first time in 2007, with 33% against 34% of the total revenue. This trend is forecast to continue, with CAGR for the period 2007?2012 projected at -6.1%."