CTAL-TA_Syll2019 Exam Dumps : ISTQB Certified Tester Advanced Level - Test Analyst (Syllabus 2019)

Classification trees are a combinatorial testing technique that allows the tester to represent the data items and their values in a graphical form, and to exclude certain combinations by using constraints or rules. Classification trees can help the tester to visualize and organize the test data, and to generate test cases that cover all relevant combinations of values. The other techniques do not provide a convenient way to exclude certain combinations, or require more complex mathematical calculations. References =

• ISTQB Certified Tester Advanced Level Syllabus Technical Test Analyst1, page 2
• Classification Tree Method for Test Design2, section “Classification Tree Method”
• Classification Tree Method - Tutorialspoint3, section “Classification Tree Method”

The specification does not clearly define the dependencies between the power unit and the body style options. For example, it is not clear if the user can select a hybrid power unit and then choose a saloon body style, or if the hybrid option is only available after selecting a hatchback body style. Similarly, it is not clear if the user can select an SUV body style and then choose a hybrid power unit, or if the SUV option is only available with petrol or diesel power units. These dependencies affect the usability of the site, as they may confuse the user or limit their choices. The specification should specify the valid combinations of power unit and body style, and how the site will handle invalid or unavailable combinations. References = ISTQB Certified Tester Advanced Level Syllabus Technical Test Analyst, page 80, section 5.3.2.1.

Functional appropriateness is the degree to which a product or system provides functions that meet stated and implied needs when used under specified conditions1. It is typically tested during system testing, which is the process of testing an integrated system to verify that it meets specified requirements2. System testing is conducted after component testing and before acceptance testing, and it covers both functional and non-functional aspects of the system3. References = ISO 25010, section A.1; ISTQB Advanced Level Test Analyst Syllabus 2019, section 1.3.1; Test Automation Fundamentals, section A.1.