Architecture Examples
This section describes three architecture designs. Deciding which architecture to choose can be reduced to identifying the following design objectives:
Application partitioning – The application itself might make better use of resources by segregating or collapsing the Web tier from the Application tier. If an application makes heavy use of static Web pages, JSP software, or servlet code, and minimal EJB architecture, it might make sense to horizontally scale the Web tier and have only one or two small application servers. Similarly, at the other end of the spectrum, it might make sense for an application to deploy all the servlet and EJB war, jar, and ear files on the same application server if there is a lot of servlet-to-EJB ...
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