Developing a load-testing script using JMeter is not difficult, as
JMeter provides a rich set of elements and a drag-and-drop-style
GUI. However, creating a test script that closely models the real
loads is often considered difficult. One of the reasons is that
some of the parameters critical to test quality are confusing. This
article solves some of the puzzles for you, and, as a related
topic, presents guidelines for response-time requirements.