failures before releasing to Production •QA goal is to find failures prior to QA testing phase and focus on regression testing phase and retesting fixes.
whether the modules tested individually can work together to deliver the required functionality. Modules tested individually may work fine, but when they are integrated together some issues may occur. System integration testing is performed to test the dependency between modules through transfer of data from one module to another....' “Online source”
software actually works, and to ask questions about how it will handle difficult and easy cases. The quality of the testing is dependent on the tester's skill of inventing test cases and finding defects...' “Wikipedia”
aim to verify a single part of a feature . Every test script has three parts: • Preconditions • Actions • Expected results It is very important that a test script is understandable by everyone and contains all the needed information to run the test What is a Test Script