Management Notes

Reference Notes for Management

Black box testing is also called

Black box testing is also called


A. specification-based testing
B. structural testing
C. verification
D. unit testing

The Correct Answer Is:

  • A. specification-based testing

Black box testing, sometimes referred to as specification-based testing, is a crucial software testing method that focuses on evaluating the functionality of a software application without delving into its internal code structure.

This approach treats the software system as a “black box” where the tester is unaware of the internal workings, and the testing is based on the system’s specifications and requirements.

In this method, the tester examines the inputs, the expected outputs, and the system’s behavior to ensure it aligns with the predetermined specifications. Therefore, option A, “specification-based testing,” is indeed the correct answer.

Now, let’s delve into why the other options are not correct:

B. Structural testing:

Structural testing, also known as white box testing, is fundamentally different from black box testing. While black box testing focuses on the external behavior of the software, structural testing examines the internal code, data structures, and algorithms. Testers who perform structural testing have access to the source code and aim to ensure that the code is thoroughly tested.

This includes statement coverage, branch coverage, and path coverage, which are metrics used to assess the completeness of code testing. Therefore, structural testing is not synonymous with black box testing, making option B incorrect.

C. Verification:

Verification is a broader term used in software development and testing, encompassing various activities such as requirements analysis, design validation, and testing. While black box testing is a type of software testing that falls under the verification process, it is not synonymous with it.

Verification activities ensure that a software product or system meets the specified requirements, while black box testing, in particular, focuses on assessing the functionality of the software without considering its internal structure. Thus, option C is not a direct synonym for black box testing.

D. Unit testing:

Unit testing is a specific level of testing that concentrates on evaluating individual units or components of a software system, such as functions or methods. Unlike black box testing, unit testing is a white box testing technique where testers examine the internal code of these units to verify that they perform as expected.

Unit testing aims to catch bugs or defects at the lowest level, making it an essential part of the software development process. However, it is not synonymous with black box testing, as it operates at a different level of granularity and involves assessing the internal code structure. Therefore, option D is not the correct answer for black box testing.

In summary, black box testing, also known as specification-based testing, is a testing approach that assesses the functionality of a software application based on its specifications and requirements, without delving into the internal code structure.

This makes it distinct from structural testing, verification, and unit testing, as each of these methods focuses on different aspects of software testing. Understanding these distinctions is essential for testers and quality assurance professionals to choose the appropriate testing techniques based on their specific testing goals and objectives.

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