iSQI CTFL-AcT - ISTQB Certified Tester - Acceptance Testing (CT-AcT)

Acceptance Test-Driven Development (ATDD) is a collaborative approach in which acceptance criteria are defined early, often before implementation starts. Business process models (e.g., BPMN) and business rule models (e.g., DMN) are essential tools to formalize how the system should behave under various conditions.

In ATDD, these models provide a structured representation of system workflows and decision logic, which can then be used by testers and stakeholders to derive or generate acceptance tests. This ensures that testing is aligned with actual business processes and requirements.

Option C is correct because it aligns with the purpose of ATDD: to use business models as a foundation for deriving acceptance tests in collaboration with business analysts, testers, and developers.

Other options:

A is incorrect — models are created as part of the project, not necessarily before it starts.

B is incorrect — models support and clarify acceptance criteria; they do not replace them.

D is incorrect — models are maintained as living documentation, especially in agile and iterative approaches.

Answer: C. In an ATDD approach, testers use business process and business rule models to generate acceptance tests.

Comprehensive Detailed Explanation (Approx. 200 words):

Building a new team with members from diverse backgrounds requires activities that foster shared values, identity, and trust. Designing a team emblem with values, goals, and a motto is a well-known team-building technique often used in Agile kick-offs. It engages creativity, sparks discussion about shared purpose, and reinforces a collective team identity.

Option A is correct because it supports both vision and team spirit — crucial for newly formed teams.

Other options:

B focuses on individual backgrounds but may not build a collective vision.

C risks highlighting negative views about the organization and may not foster trust at the early stage.

D uses a “staircase” metaphor but incorrectly locates the team at the top of the stairs — potentially signaling an endpoint rather than a beginning, making it inappropriate for a new team.

Answer: A. You invite the team members and ask them to design their own emblem…

Comprehensive Detailed Explanation:

According to the scenario described in the question, the business process for expense reimbursement includes two key timing constraints:

If the request is not processed within 7 days, an "ongoing" email is sent to the employee.

If the request is not completed within 30 days, the process is canceled and the employee is asked to resubmit the request.

However, in the BPMN model presented in the image, the second timing event (clock icon near "Approval in Progress") incorrectly shows 23 days instead of 30 days. This discrepancy misrepresents the actual business rule and violates the accuracy required in process modeling.

ISTQB Foundation Level Extension – Acceptance Testing syllabus and the Certified Tester Foundation Level Business Process Testing (CTFL-BAT) emphasize that a process model should correctly reflect the specified behavior, rules, and constraints of the business scenario. An incorrect timer can lead to miscommunication between stakeholders and incorrect automation or implementation logic.

Therefore, Option A is the most likely review comment since it directly points to this inconsistency in the model.