Effective software test managers not only understand the discipline of testing, but they are also able to manage and implement a testing process in their organizations. That requires team leading skills, communication skills, and being able to measure the testing team's return on investment.
System Testing follows much the same course (Design, Implement, execute and defect) but the intent or focus is very different. While Functional Testing focuses on discrete functional requirements System Testing focuses on the flow through the system and the connectivity between related systems. For example testing to ensure the application allows the entry, activation, and recovery of a new forum member . in this case we are testing to ensure the system supports the business. There are several types of System Testing, what is required for any given release should be determined by the Scope.
Testing the features and operational behavior of a product to ensure they correspond to its specifications. Testing that ignores the internal mechanism of a system or component and focuses solely on the outputs generated in response to selected inputs and execution conditions. or Black Box Testing.
Retesting a previously tested program following modification to ensure that faults have not been introduced or uncovered as a result of the changes made.
Test which focus on the boundary or limit conditions of the software being tested. (Some of these tests are stress tests).
Performance testing focused on ensuring the application under test gracefully handles increases in work load.
Black-box tests conducted once the software has been integrated.
Checks for memory leaks or other problems that may occur with prolonged execution.
An approach to integration testing where the component at the top of the component hierarchy is tested first, with lower level components being simulated by stubs. Tested components are then used to test lower level components. The process is repeated until the lowest level components have been tested.