QUALLITIES OF A GOOD TESTER. A good software tester have the following qualities. ►High probability of finding error. ►Good test: Not redendant. ►Best of bread. ►Not too much simple: Not too much complex. ►High probability of finding error. To achieve thsi goal, tester must understand the software and attempt to develop a mental picture of how the software might. ►Good test: Not Redendant. As testing time and resources are limited, so there is no point in conducting a test that has the same purpose as another. ►Best of bread. The test that has the highest likekihood of uncovering a whole class of errors should be used. ►Not too much simple: Not too much complex. A good test should not be too much simple or not to be complex. In general, each test should be executed seperately as it is sometimes makes risk to combine a series of tests into one test case.