Black Box Testing

Last Updated: July 2, 2020

Definition - What does Black Box Testing mean?

Black box testing is a software testing technique that focuses on the analysis of software functionality, versus internal system mechanisms. Black box testing was developed as a method of analyzing client requirements, specifications and high-level design strategies.

A black box software tester selects a set of valid and invalid input and code execution conditions and checks for valid output responses.

Black box testing is also known as functional testing or closed-box testing.

Techopedia explains Black Box Testing

A search engine is a simple example of an application subject to routine black box testing. A search engine user enters text in a web browser's search bar. The search engine then locates and retrieves related user data results (output).

Black box testing advantages include:

  • Simplicity: Facilitates testing of high-level designs and complex applications
  • Conserves resources: Testers focus on software functionality.
  • Test cases: Focusing on software functionality to facilitate quick test case development.
  • Provides flexibility: Specific programming knowledge is not required.

Black box testing also has certain disadvantages, as follows:

  • Test case/script design and maintenance may be problematic because black box testing tools depend on known inputs.
  • Graphical user interface (GUI) interaction may damage test scripts.
  • Testing only covers application functions.

Survey: Why Is There Still a Gender Gap in Tech?

Do you work in the tech industry? Help us learn more about why the gender gap still exists in tech by taking this quick survey! Survey respondents will also be entered to win a $100 Amazon Gift Card!

Share this: