Quick Test case is designed for programmers with limited time and budget to still develop effective test cases for application testing. It is not designed to be a fully featured UML or other CASE tool but a low budget alternative.
Many software development departments and individuals lack the time and money to properly develop software. The reality is that many companies fail to see the benefit in software engineering regardless of the proven benefits. If you are a software developer that unfortunately has to work in this sort of environment, QTC may help you be more successful.
Quick Test Case (QTC hereafter) allows a developer to quickly document test cases while he/she is developing and designing software. Many times unit testing can be performed at the same time. In this "extreme" programming mode you can still get back to some fundamental engineering principals by using QTC to document the test cases. Most developers know and understand the need for good test cases, but rarely have the time to develop or document them.