Learn about controllability, a key testability characteristic in ISTQB CTAL-TAE certification. Understand how it enables test automation frameworks to access interfaces and perform system actions effectively.
Table of Contents
Question
When a system is designed for testability, one of the characteristics is that the test automation framework (TAF) can access interfaces to perform actions on the system. What is this characteristic called?
A. Observability
B. Controllability
C. Maintainability
D. Interoperability
Answer
B. Controllability
Explanation
In the context of software testability, controllability refers to the ability of a system to be controlled in such a way that all possible outputs can be generated through specific inputs or commands. It ensures that software and hardware states, as well as variables, can be directly manipulated by testers or automated scripts. This characteristic is critical for enabling test automation frameworks (TAFs) to interact with system interfaces and perform specific actions on the system under test (SUT).
When a system is designed with high controllability:
- Testers can easily set up the desired preconditions for tests.
- Automated scripts can invoke system states and transitions efficiently.
- Testing becomes more streamlined, as inputs and outputs are consistent and structured.
For example, in test automation, controllability allows the TAF to:
- Trigger specific actions or state changes in the SUT.
- Simulate user interactions or backend processes via APIs or other interfaces.
- Automate repetitive tasks without manual intervention.
This characteristic is essential for effective automation since it ensures that all parts of the SUT can be accessed and tested in isolation or as part of an integrated workflow.
Why Not the Other Options?
A. Observability: Observability pertains to the ability to monitor and detect the system’s responses to inputs, such as logging outputs or tracking state changes. While important for debugging and validation, it does not involve direct control over the system.
C. Maintainability: Maintainability refers to how easily a TAF or system can be modified or updated over time, such as adapting tests when software changes occur. It is unrelated to accessing interfaces for performing actions.
D. Interoperability: Interoperability is about how well different systems or components work together, which is not relevant to controlling a single system’s interfaces.
By focusing on controllability, software teams can design systems that are more testable and better suited for automation, aligning with ISTQB CTAL-TAE certification principles.
ISTQB CTAL-TAE certification exam assessment practice question and answer (Q&A) dump including multiple choice questions (MCQ) and objective type questions, with detail explanation and reference available free, helpful to pass the ISTQB CTAL-TAE exam and earn ISTQB CTAL-TAE certification.