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Understanding Operational Requirements
Before you begin to deploy and tune your application on the Application Server, it is important
to clearly dene the operational environment. The operational environment is determined by
high-level constraints and requirements such as:
■
“Application Architecture” on page 19
■
“Security Requirements” on page 21
■
“Hardware Resources” on page 22
Application Architecture
The Java EE Application model, as shown in the following gure, is very exible; allowing the
application architect to split application logic functionally into many tiers. The presentation
layer is typically implemented using servlets and JSP technology and executes in the web
container.
UnderstandingOperationalRequirements
Chapter1 • OverviewofEnterprise ServerPerformanceTuning 19