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WebSphere and e-business
568 iSeries Handbook
the core element of the IBM Application Framework for e-business, WebSphere
Application Server Standard Edition forms the foundation of the WebSphere
application server family and offers application developers a solution to build, deploy,
and manage e-business Web sites. WebSphere Application Server Standard Edition
provides companies with an open, standards-based Web server deployment platform
and supports servlets as well as JSP components. WebSphere Application Server
Standard Edition provides an excellent way to initially transform your business to an
e-business.
• WebSphere Application Server Advanced Edition is an even more powerful Java
based development and deployment environment for e-business applications.
WebSphere Advanced Edition builds on and enhances the Standard Edition to provide
additional support for scaling Web sites into security-enhanced, transactional-based
e-business application sites. WebSphere Advanced Edition provides Enterprise
JavaBean (EJB) support for host-based transactions, and offers sophisticated tools to
simplify distributed, component-based application development. The EJB architecture
is component-based for the development and deployment of server-based business
applications. It greatly simplifies the separation of business applications from
underlying system services.
Product Positioning: WebSphere Application Server and Jakarta Tomcat
IBM’s strategic web application server is WebSphere Application Server. The latest
version of WebSphere Application Server is Version 4. It includes two editions for iSeries
customers: WebSphere Application Server Advanced Single Server Edition and
WebSphere Server Advanced Edition. These two editions support Servlets, Java Server
Pages, Enterprise JavaBeans, and more.
Some iSeries customers want a basic, no-cost web application server which supports
Servlets and Java Server Pages. Relying on the IBM HTTP Server (Powered by Apache)
as its web server, the Apache Software Foundation’s Jakarta Tomcat provides a basic
Web application server for iSeries customers. Jakarta Tomcat is available with OS/400
and at no additional cost to customers.
Jakarta Tomcat is offered as a way for iSeries customers to “get started” with Java
server-side components and web application serving. Customers should select
WebSphere Application Server when they need to deploy e-business solutions that are
J2EE compliant, provide the most function, and deliver the highest levels of reliability,
scalability, and security.
If an IBM or ISV application requires WebSphere Application Server as the base Web
application server, do not consider Jakarta Tomcat as an alternative Web application
server. Examples of IBM products which require WebSphere Application Server as the
base web application server include WebSphere Commerce Suite, WebSphere Payment
Manager, and WebSphere Host Publisher.