Software testing is a huge field and there are many related
jargons. White box and black box testing are two terminologies used by software testing companies and
experts. This article shares what these two terminologies mean and related
details for c-level executives, project managers and aspiring software testers.
Software testing and quality assurance are inseparable parts
of a software development process. Software testing is a huge field. There are
many jargons. People like project managers and c-level executives need to
discuss the quality of the product with the best
software testing company or professional on a regular basis in order to
keep progress on track. The software testing expert can’t control using these
jargons and the managers find it difficult to understand. Thus, it is important
to learn about the most commonly used software testing terminologies.
White box testing
This type of software testing practice is performed to test
all internal components for its functionality. The software testing
professional is exposed to internal code to verify the functionality of each
class and module. The white-box testing aims to find any possible errors in the
code to see how the system or application performs. Thus, it can be only done
when the system or a functional application is ready. The software testing company
assures to test all internal components for possible failures.
To perform white box testing, the testing professional must
have technical knowledge. The implementation of knowledge is also required to
carry out white box testing. Thus, white-box testing is performed either by
software developers or the software
testing experts with strong development knowledge.
The white box testing involves detailed testing. Thus, the
basis of test cases is detailed design. The most common types of software
testing used in the white box testing are unit testing, integration testing,
data flow testing, etc.
The most common defects identified by white box testing are
listed below:
- incorrect syntax.
- logical errors.
- design errors.
Black box testing
As the name suggests, black box testing is performed in a
scenario when the software testing expert is unaware of the internal structure
of the software. Generally, it is used to test the functionality and
performance of the software or application from the user perspective. The software
testing company carries out this test to see if all modules and applications of
the system are returning the expected value or not.
The software testing professional doesn’t need to have the
technical knowledge to perform the black box testing. This type of software
testing is performed by the individual software testing companies or
professionals without any kind of involvement of the software developers.
The black box testing test cases are designed on the basis
of requirement specifications. The software testing experts test the
application at a higher level. Thus, it involves testing methods like system
testing, acceptance testing etc.
The most common defects identified by the black box testing
are listed below:
- access errors.
- interface errors.
- data errors.
- missing functions.
Software Testing Training Institute
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