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

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.

Classification trees are a visual way of identifying test objects and data, and pairwise testing is a technique of generating test cases that cover all possible pairs of values from different classifications. Classification trees support pairwise testing by:

• Helping to identify inputs to be used by the pairwise test technique, as each class represents a possible value for a test parameter.
• Showing the combinations needed to cover all-pairs, as each test case is a selection of one class from each classification.
• Helping to identify particular combinations of interest, as the test engineer can use the tree structure to group or prioritize classes based on their relevance or risk. References = ISTQB Advanced Level Test Analyst Syllabus 2019, section 3.2.3; Smarter Test Design with Classification Trees and Pairwise Techniques, slides 6-12.

The classification tree shows the combinations of power units and body styles for the Supercar online vehicle sales website. Since SUVs are not available in hybrid, and the existing test cases already cover petrol SUV, electric saloon, and petrol hatchback, the missing test case is hybrid hatchback to achieve minimum class coverage. References = ISTQB Certified Tester Advanced Level Syllabus Technical Test Analyst, Section 3.2.3, Classification Trees1; ISTQB Advanced Level Test Analyst (CTAL) Exam Study Guide, Section 3.2.3, Classification Trees2