Black Box - Error Guessing

3) Error Guessing Technique

Error Guessing comes with experience with the technology and the project. Error Guessing is the art of guessing where errors can be hidden. There are no specific tools and techniques for this, but you can write test cases depending on the situation: Either when reading the functional documents or when you are testing and find an error that you have not documented.

What`s the Error guessing ?
a). A test case design technique where the experience of the tester is used to [1] postulate what faults might occur [2] and to design tests specifically to expose them.

b) Error guessing. (NBS) Test data selection technique. The selection criterion is to pick values that seem likely to cause errors.

c) Error guessing - the use of past experience and an understanding of the faultiest of human developers - makes the difference between a systematic process that finds tons of bugs and one that systematically accomplishes little.