About our author: Alan Choy is the Principal Consultant of eIT Consulting Inc., which specialized in providing professional services and solution to enterprise application development and maintenance. Alan has held this position since October 2005.

Alan has over 11 years of experience in enterprise application development, in multiple international companies, including Ericsson Research Canada, Motorola (Canada) Inc., CGI Group Inc. and Telus Corporation. In the past few years Alan has focused on Java and J2EE platform, with vast experience in many open source technologies such as Spring framework, AOP and Hibernate.