A use case is a sequence of actions performed by a system, which combined together produce a result of value to a system user. Use cases describe the "process flows" through a system based on its actual likely use, so the test cases derived from use cases are most useful in uncovering defects in the process flows during real-world use of the system. Here is an example of how a use case is used to derive and prioritize test cases.

Many of the culprits responsible for security breaches found on corporate networks and the Internet today have used buffer overrun problems as the main way to exploit the system. Here is an examination of buffer overrun bugs and how to prevent them.

Management and testers may not often speak the same language. This article takes an unvarnished look at the communication gap between quality advocates and management and offers ways to open a dialogue and gain credibility.

Is your testing effort facing an impossibly wide choice of test parameters? Shooting in the dark can yield hit-and-miss results--and that’s just not very effective. When your testing effort faces an impossibly wide choice of test parameters, the Orthogonal Array Testing System technique can be a very useful method for deriving a suitable set of test cases.