J2EE Blue Print Program and Compatibility Test
The Application Programming Model specifies neither a mandatory development process nor
a specific application architecture. This is not to be understood as a defect because it
results from fact that J2EE shell be a "functionally complete architecture".
Especially for the development of webapplication with web components and or EJB a wide
range of methodologies and architectural approaches are considered or used. The J2EE blue
prints program tries to fill the gap between "every day life development
reality" and the highly abstracted programing model.
One building block of the blue print programm is the
"petstore"-sample-application. This application acts as a demonstration for the
use of recommended practices and patterns in the development process. The suggestions on
application architecture, design and deployment made by the blue prints should be
considered as practically proven guidelines and recommendations.
The reference implementation completes the J2EE standard by presenting an archetype for
J2EE platform that can be used by J2EE Product Providers as well as by the application
developers to experience features and behaviour of a standard platform.
Different implementations of the J2EE platform can verify their conformance to the
standard by the use of the compatibility test suite. This approach should assure the
application developer, that he could run a J2EE compliant application on every J2EE
compliant platform.
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