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

The smallest set of test conditions to provide minimum coverage of the boundary values is the one that tests the minimum and maximum values for each category of carpet installation prices, as well as the values that are just above or below the boundaries. Option A covers these values, as it tests the boundary values of 0, 20, and 40 square yards, as well as the values that are one square yard more or less than these boundaries. It also tests the maximum possible value for the carpet area and the value that exceeds it. The other options do not test all the boundary values or have redundant values. References =

• ISTQB Certified Tester Advanced Level Syllabus Technical Test Analyst1, page 2
• Boundary Value Analysis and Equivalence Partitioning Testing2, section “Boundary Value Analysis”
• Equivalence Partitioning Method3, section “Example 1: Equivalence and Boundary Value”

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 minimum acceptable level of coverage for this use case is to cover all the scenarios and their combinations. Therefore, we need at least one test case for each of the following:

• Basic scenario single-sided to single-sided
• Alternative single-sided to double-sided
• Alternative copy of a set
• Alternative copy using the automatic document feeder
• Error no paper in paper tray
• Error paper jam
• Error out of staples References = ISTQB Certified Tester Advanced Level Syllabus Technical Test Analyst, page 63, section 4.4.2.2.