U.S. IT-related magazines International Data Group (IDG) under the department – Network World has published a certification for the IT-related findings. The survey results show that the income of the U.S. IT certification market in 2003 will reach 4.1 billion, annual growth rate of 15%. In the U.S., has made IBM Certification, Cisco, Oracle and other enterprise technology certification, the salary will increase significantly. On Demand Business certification personnel to obtain the average annual salary of certified personnel than not higher than 40%.