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

The use case only describes the normal or happy path scenario, where the user performs a successful cash withdrawal. However, it does not consider any alternative or exceptional scenarios, such as invalid card, incorrect PIN, insufficient balance, network failure, etc. These scenarios are important to test the robustness and reliability of the ATM system, and should be included in the use case specification. References = ISTQB Certified Tester Advanced Level Syllabus Test Analyst, Section 2.2.1, Use Case Testing1; ISTQB Advanced Level Test Analyst (CTAL) Exam Study Guide, Section 2.2.1, Use Case Testing2

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.

This is an effective method to employ business users in your testing effort because it allows them to leverage their domain knowledge and experience without requiring them to have technical skills or testing tools. Test charters are high-level descriptions of the test objectives, scope, and approach that guide the testers to explore the system and report any issues they find. Test charters are flexible and can be adapted to different test levels and types. They are also suitable for the V-model development lifecycle, which emphasizes verification and validation at each stage of the development process1

References =

• ISTQB Advanced Level Test Analyst Syllabus 2019, Section 3.2.3.2, page 482
• Exploratory Testing: An Agile Approach | Software Testing Help3
• Exploratory Testing: What are Test Charters? | TestLodge Blog4