Negative Testing

---

Conducting this form of testing may include a wide variety of inputs not expected by the system to determine how well the product responds. Some examples of possible exercises include:

• Invalid use of keystrokes, mouse, function keys and miscellaneous keyboard operations.
• Repeated operations between soft keys, navigation buttons and tool bars.
• Invalid and valid interaction with Windows, if a window based product (Ex. - Maximizing and minimizing screens, navigating from one application to another, execute product-exit to windows- return to product, etc.).
• Invalid selections of menu selections and menu selection function keys.
• Inappropriate use of the function or set of functions.
• Invalid data inputs (Ex - Put alpha characters in a numeric field or combination or blanks, or invalid length).
• Insert more information in a field than allowed.
• Unplug the machine or network when in the middle of executing the application.
• Press other keys or attempt to do another operation while executing the application.
• Decrease the amount of memory or system resources available for the application.