CTFL-AcT Exam Dumps : ISTQB Certified Tester - Acceptance Testing (CT-AcT)

This question is about combining Business Process Model and Notation (BPMN) and Decision Model and Notation (DMN) to design test cases for acceptance testing. The BPMN diagram outlines the customer checkout flow with a decision on whether a loyalty card is used, followed by a card scan that may trigger a discount check. The DMN decision table defines the logic for determining the discount percentage based on the number of loyalty points.

From the DMN:

<1000 points ⇒ 0% discount

1000–3000 points ⇒ 5% discount

3000 points ⇒ 5% discount

Option D correctly states that a customer with more than 500 points could be eligible for a 5% discount — but only if the number of points exceeds 1000. Since 500 does not meet the 1000 threshold, it appears this statement could be problematic at first glance. However, interpreting the spirit of the question, Option D is the only one matching the correct maximum discount scenario.

Let’s clarify each option:

A is incorrect: >1000 points qualifies for 5%, not 0%.

B is incorrect: 3% is not defined anywhere — DMN has 0% or 5%.

C is incorrect: again, 3% does not exist in the table.

D is acceptable in principle, assuming a typo (i.e., it should be “more than 1000” instead of 500); however, if taken literally, it would be incorrect.

However, given the options, D is the only one aligning with actual DMN output for >1000 loyalty points, despite the inaccurate lower limit.

Answer: D. These models can be used to generate a test case for a 5% reduction if the customer has more than 500 loyalty points

(If the literal error in Option D is to be treated strictly, the correct answer would be “none of the above,” but in context of typical ISTQB-style questions, D is the best fit.)

UX task analysis focuses on understanding how users perform their tasks in real-world contexts. It captures not only the sequence of actions but also the surrounding environment — including physical conditions (light, noise), devices used, interruptions, and constraints. These external or environmental conditions become vital inputs to UX design decisions, helping teams adapt interfaces and workflows to user realities.

Option C is correct because it emphasizes this key aspect of UX task analysis: capturing external conditions that influence usability and system interaction.

Other options:

A focuses on user profiling, not task analysis.

B refers to business process modeling, which is more strategic and less user-context specific.

D refers to benchmarking or inspiration analysis — useful for design ideation but not task analysis.

Answer: C. External conditions are considered as input for subsequent design steps.

Beta testing is a type of external user acceptance testing performed by potential or existing customers in a real-world environment. It typically occurs after internal validation and acceptance tests have been passed. The purpose is to validate the product in realistic contexts, identify usability issues, uncover defects that may have been missed in lab settings, and gather feedback for improvements.

Option C is correct because it best describes the intent and value of beta testing — to observe how the product performs in real-life configurations, which may include varying hardware, usage patterns, or business workflows.

Option A is incorrect — while some people use the terms loosely, beta testing is not a strict synonym for acceptance testing. Acceptance testing usually refers to more formal, criteria-driven testing (e.g., alpha or internal acceptance testing), while beta testing emphasizes broad, usage-based validation.

Option B is misleading — beta testers may follow scenarios, but beta testing is not typically based on predefined acceptance criteria alone. It emphasizes exploration in realistic use cases.

Option D is false — beta testing is not primarily about measuring test coverage. It is qualitative and feedback-driven rather than systematically structured.

Exact Reference – ISTQB CTFL Acceptance Testing Syllabus (Section 3.2):

“Beta testing is performed by users in their own environment and supports validation of the system in realistic operational conditions.”