Pass the iSQI ISTQB Foundation Level CTFL-AcT Questions and answers with CertsForce

Acceptance criteria describe what the system must do to fulfill a requirement from the user or business perspective. They must be observable, testable, and relevant to the business outcome or expected behavior.

In this scenario, the user story is about monitoring blood pressure and receiving alerts for excessive pressure. The acceptance criteria should focus on system behavior, thresholds, and how alerts are triggered based on user settings.

Option D is not a good acceptance criterion because:

It specifies a technical implementation detail (JavaScript framework), which is not the concern of acceptance testing.

Acceptance criteria should not prescribe how the system is built, but what it must do from a business or user point of view.

Other options (A, B, and C) all reflect testable and behavior-focused outcomes linked to the user story’s goal.

Answer: D. The system should be developed using JavaScript framework to allow fast response times

Acceptance criteria must be concrete, testable, and focused on observable system behavior. They define what the system must do to satisfy a requirement and help determine whether the requirement has been successfully implemented.

REQ 3.28 states: “The automated system records critical credit application data (CCAD) needed to support application screening.” From this, we infer that the system must persistently store this data after data entry.

Option A is the best match because it provides a specific, observable behavior (CCAD being stored in a MySQL database after a successful entry) that can be verified through acceptance testing. It’s a measurable outcome, aligned with the requirement's objective.

Other options are less suitable:

Option B introduces new behavior (displaying a message) not directly tied to the original requirement.

Option C is vague ("quick and reversible") and lacks measurable criteria.

Option D refers to usability guidelines, which is not directly relevant to the storage functionality stated in the requirement.

Exact Reference – ISTQB CTFL Acceptance Testing Syllabus (Section 1.3.2):

“Well-written acceptance criteria are unambiguous, testable, and focused on observable results.”

To determine the minimum number of test cases needed to cover:

All unique paths (without repeating loops) in the BPMN process model.

All decision rules (combinations) in the DMN decision table.

Let’s break it down:

BPMN Paths:

If the purchase order is not approved → process ends → 1 path

If approved:

Goods received → “Check of delivery” → Acceptance YES → Payment → 1 path

Goods received → “Check of delivery” → Acceptance NO → Discussion → End → 1 path

= Total distinct BPMN paths: 3

DMN Table:

There are 4 rules based on two inputs (Quality check and Quantity check):

Acceptable + Amount ok → Passed

Substandard + Amount ok → Failed

Acceptable + Amount incorrect → Failed

Substandard + Amount incorrect → Failed

You must execute 4 combinations to cover all decision rules.

To cover both all BPMN flows and all DMN rules, you need a minimum of 4 test cases (each using a different rule from the DMN table and associated BPMN path). Paths may overlap, but all rules must be exercised.

ISO/IEC 25010 defines two key quality models:

Product Quality Model (e.g., Usability, Security, Portability)

Quality in Use Model — which includes characteristics of the user’s experience when interacting with the product in a real-world context.

The four main characteristics of the Quality in Use model are:

Effectiveness

Efficiency

Satisfaction

Freedom from risk

Option A — Efficiency is one of the key Quality in Use characteristics, as it refers to the resources used to achieve goals with accuracy and completeness.

Other options:

B (Usability), C (Compatibility), and D (Portability) are characteristics of the Product Quality Model, not of Quality in Use.

Therefore, the correct answer, as per ISO 25010:2011, is:

Answer: A. Efficiency

In cross-functional, globally distributed teams, establishing collaboration, communication, and trust is key. A workshop (even virtual) is a proven method for initiating alignment, especially when a new team member joins, and project coordination is weak.

Option A promotes transparency and collective understanding, crucial for building team cohesion.

Option B is too passive and one-directional. Long emails rarely solve coordination problems in Agile or collaborative contexts.

Option C is about tool setup, not team integration or communication — tools are supportive but not substitutes for human connection.

Option D is not efficient; traveling to meet each team member is impractical and doesn’t guarantee a shared team vision.

✔ Answer: A. You organize a workshop with all team members to establish common understanding and to lay the foundation for fruitful trusting collaboration.

Beta testing is a type of acceptance testing performed by end users in a real-world or production-like environment. It is especially relevant for cloud-based and SaaS platforms where widespread feedback is required before release.

Option B is correct because SaaS platforms often release features to a subset of users (beta users) to test the software under actual operating conditions, get feedback, and fix any defects that were not found during internal testing. This allows vendors to validate functionality, performance, and usability in diverse environments.

Other options:

A: Beta testing is not limited to Commercial Off-the-Shelf (COTS) software.

C: Incorrect — beta testing is a form of acceptance testing, not a separate unrelated technique.

D: Incorrect — beta testing and acceptance testing overlap, but they are not synonyms; the terminology does not change based on the development approach (Agile or not).

Answer: B. Beta testing is often used for acceptance testing of Software as a Service (SaaS) platforms

Graphical representations of business processes, particularly using BPMN (Business Process Model and Notation), serve as a bridge between business stakeholders and testers. These models help visualize the steps a user or system goes through, making it easier to derive test cases.

Option C is correct because acceptance testing aims to validate the system’s behavior from the user or business perspective. Therefore, focusing on key user workflows (rather than exhaustive technical or exception paths) aligns with the purpose of acceptance testing: to ensure that the system meets agreed-upon business requirements.

Option A is incorrect because decision tables are part of DMN (Decision Model and Notation), not BPMN.

Option B is too rigid — not all alternative/error paths must be modeled in early acceptance testing unless they are critical to business rules.

Option D misapplies the standards — DMN is used to model business rules, not the complete business process.

Answer: C. For acceptance testing, graphical business process models should focus on the user workflows to be tested.

Performance testing evaluates how a system behaves under specific conditions, including load, stress, and endurance. Stress testing, in particular, involves pushing the system beyond its normal operational limits to identify breaking points.

Option B is correct because it describes a classic stress testing scenario: simulating users executing memory-intensive operations to evaluate system resilience and resource management.

Other options:

A describes usage profiles but is more aligned with load testing or configuration testing.

C refers to functional coverage, not performance-specific concerns.

D describes fuzz testing, which is used more for security or robustness testing than performance evaluation.

Answer: B. The system is stressed by simulating various users that perform memory-intensive tasks

Acceptance Test-Driven Development (ATDD) involves early collaboration between stakeholders to define acceptance criteria and tests before development begins. Using business process models in ATDD helps visualize user behavior, align test cases with real workflows, and serve as living documentation.

Option C is the least meaningful argument because:

Business process models abstractly describe workflows and decisions at a business level. While they help clarify requirements and detect requirement-related defects, they do not directly support detecting defects in the application code, which is typically the focus of unit and integration testing, not acceptance testing.

Let’s validate the other options:

A is a strong argument — process models clarify use cases for testers.

B is valid — graphical models help visualize test coverage directly.

D is true — as business process models evolve, they remain valuable artifacts aligned with current system behavior and requirements.

Answer: C. Business process models will make it easier to detect defects in the application code.

Collaboration between business analysts and testers is essential in defining and reviewing acceptance criteria. When both roles work together, they ensure the criteria are not only aligned with business goals but also testable and clearly specified.

Option A is correct because shared understanding of acceptance criteria allows testers to design test cases that truly validate business expectations, reducing misinterpretations and increasing confidence in the product.

Other options:

B is valid but not the best — non-functional requirements are important but often handled separately.

C is partially correct but assumes acceptance test cases already exist, whereas the review often happens earlier in the process.

D focuses on test reporting, which is downstream from criteria definition and test case design.

Answer: A. A shared vision between the business analyst and the tester on acceptance criteria facilitates the design of acceptance test cases.