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

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.

Installability testing is a type of non-functional testing that focuses on verifying that the software can be installed, upgraded, and uninstalled without errors or interruptions1. It is usually performed by a technical test analyst who has knowledge of the installation requirements, dependencies, and configurations2. The main objectives of installability testing are to ensure that the software is compatible with different platforms, environments, and hardware specifications, and that the installation and de-installation processes are functional, reliable, and secure3. Usability issues, such as the clarity, simplicity, and efficiency of the installation and de-installation user interfaces, are not the primary concern of installability testing, and may be better addressed by other types of testing, such as usability testing or user acceptance testing4. References = Installation testing - Wikipedia; ISTQB Advanced Level Technical Test Analyst Syllabus 2019, section 4.3.2; Mastering Installability Testing: A Key Software Quality Assurance Process; Installation Testing | Complete Overview Of Installation Testing

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.