This study analyzes Japan users' stance in the application integration solutions market. It presents 2004 market size estimates and a 2005?2009 market forecast. The 2004 Japan application integration solutions market size was valued at 251.1 billion Yen. However, IDC predicts that the Japan application integration solutions market will increase at a compound annual growth rate (CAGR) of 6.2% to reach a value of 339.2 billion Yen in 2009.