A testing phase where the tester tries to 'break' the system by randomly trying the system's functionality. Can include negative testing as well. See also Monkey Testing
How many users should we include in testing?
Where can my testing take place?
What if my product/site isn�t built yet?
When should I do usability testing?
What is usability testing?
How will you call from one action to another action ?
How to Reduce the Cost of Software Testing
What is Performance Testing?
What's the difference between load and stress testing ?