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

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 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

The correct answer isD.The story contains more than one item of functionality.

The story contains more than one item of functionality

A user story should be small, simple, and focused on one item of functionality that delivers value to the user. This story combines two items of functionality: querying the balance and withdrawing money. These items could be separated into two different stories, each with its own acceptance criteria and priority.This would make the stories easier to understand, estimate, test, and deliver1.

References=

• User Stories | Examples and Template | Atlassian2, Section User story best practices
• ISTQB Certified Tester Advanced Level Syllabus Test Analyst3, Section 2.1.1 Test Analyst Tasks in the Test Process
• ISTQB Test Analyst Syllabus and Study Guide4, Section 2.1.1 Test Analyst Tasks in the Test Process