Java distributed application

Java EE provides a standardized way to enable interactions between distributed applications and disparate information sources.It provides framework for development of distributed applications and is one of the leading platform for the deployment of Service Oriented Architecture(SOA)based applications using web services.

Java EE applications can be divided into following application tiers.

• Client-tier components run on the client machine.
• Web-tier components run on the Java EE server.
• Business-tier components run on the Java EE server.
• Enterprise information system (EIS)-tier software runs on the EIS server.

Above architecture diagram depicts high-level distributed application architecture layers.

It uses a distributed multi tiered application model for enterprise applications where application logic is divided into components according to function, and the various application components that make up a Java EE application are installed on different machines depending on the tier in the multi tiered Java EE environment to which the application component belongs.

Since Java EE-based applications are designed to work together, the enterprise-wide adoption of Java EE makes it easier to create seamless computing environments. This reduces costs for companies already integrating their distributed systems and processes and enables more businesses to achieve the benefits of business integration.

At e-Zest,we leverage our distributed application development experience and expertise using J2EE technologies along with technology research and evaluation capabilities to undertake distributed application development engagements. This allows our customers to make a smooth transition to enterprise systems and solutions to address their changing business needs.

e-Zest's Sun Java Technology skillset
Language Java	Technology J2EE, JEE5, Struts, Spring, JSF
Web services Java API for XML-Based Web Services (JAXWS), Java API for XML-Based RPC (JAX-RPC), Java Architecture for XML Binding (JAXB) 2.0, SOAP with Attachments API for Java (SAAJ), Streaming API for XML, Apache Axis	Application Server Jboss, Tomcat, Apache
Databases      SQL Server 2005/2008, Oracle 9i, MySQL 5, PostgreSQL 8, Sybase	Enterprise      Enterprise JavaBeans, J2EE Connector Architecture, Java API (Message Service, Persistence, Transaction, JDBC), JavaMail
IDEs             Eclipse, Netbeans, Sun Studio Creator