Testing methodology

There are a few different approaches that can be taken when profiling a Web application. One approach is to profile individual pieces of functionality (possibly as part of the unit test process as they are being developed). Alternatively, a mixture of operations that represent typical user behavior could be executed, either manually or using a load testing tool such as Mercury LoadRunner, Rational® Robot, or Apache JMeter. Initially the testing can cover a broad range of scenarios, and then as particular areas of functionality are identified, more detailed profiling can be done for them. The Trade3 application includes a servlet "scenario" that simulates a set of users by executing a trade operation for a random user on each invocation of the servlet. A similar servlet or client program that exercises a broad range of application functionality may also be useful for other applications.

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