The main purpose of use case testing is to identify defects in process flows related to the typical use of the system. Use case testing is a black-box test design technique that is based on use case scenarios. These scenarios help in validating that the system performs correctly for the specific ways in which the users will interact with it. This method is particularly effective in finding issues that users might encounter during real-world usage of the system. Reference: ISTQB CTFL Syllabus V4.0, Section 4.2.4​​.

One of the seven key principles of software testing, as outlined in the ISTQB Certified Tester Foundation Level Syllabus v4.0, states that exhaustive testing is impossible except for trivial cases. This principle emphasizes that it is not feasible to test all possible input/output combinations due to the sheer number of permutations, and therefore, testing should be risk-based and prioritized to ensure the most critical aspects are tested effectively.

The main purpose of the component build and integration strategy is to specify which components to combine when, and how many at once. This strategy helps manage the complexity of integrating different parts of the system by providing a structured approach to combining components incrementally. It ensures that integration is done systematically, reducing the risk of integration issues and making it easier to identify and resolve problems as they arise​​.

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A keyword-driven testing approach is effective because it separates the test logic (actions) from the test data. This makes the scripts more reusable and easier to maintain. By organizing tests this way, any changes in the data or the actions can be made independently without affecting the other, enhancing the efficiency and manageability of automated tests​​.

Maintenance testing is typically triggered by changes to the operational system, such as data migration, system modification, or system retirement. These triggers require testing to ensure that the changes do not negatively impact the existing functionality. However, the introduction of a test management tool does not directly affect the operational system and is not considered a trigger for maintenance testing​​.

An incident report typically includes the version(s) of the software under test, expected results and actual results, and precise steps to reproduce the problem. However, the test execution schedule is not a standard part of an incident report. It is more relevant to test planning and management documents rather than incident reporting​​.

The correct logical order for the test cases ensures a smooth and realistic flow through the system functionalities. The sequence should start with logging into the system (Test Case 3), searching for available flights (Test Case 1), selecting an available flight (Test Case 4), viewing the selected item in My Flights (Test Case 2), confirming details and booking the flight in My Flights (Test Case 6), and finally printing the confirmation receipt and exiting (Test Case 5)​​ .

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