AllianceTek developers have extensive training and experience in application development using J2EE.

Most J2EE web-based enterprise applications are split into three logical tiers, Presentation Tier, Business Logic Tier, and Enterprise Information System Tier.

The presentation tier, which aims at presenting the business information to the user, is implemented using Servlets, JSPs and HTML/WML.

The business tier, where core business mechanisms are implemented, is usually encapsulated in EJBs (Enterprise Java Beans).

The enterprise information system tier, which represents different kinds of legacy systems and database servers, is usually accessed through the JDBC API and other standard interfaces provided by the J2EE Connector Architecture.

AllianceTek developers have created J2EE features including:

			J2EE Design and development guidelines.
			N-tier architecture.
			Enterprise JavaBeans (EJB) 2.0
			JavaServer Pages (JSP) 1.1 /Servlets 2.3
			Java Database Connectivity (JDBC) 2.0
			Java Naming and Directory Interface (JNDI) 1.2
			Java Transaction Service and API (JTS, JTA) 1.0
			Java Message Service (JMS) 1.0.2
			JavaMail 1.1
			Java Activation Framework (JAF) 1.0