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The Principles of Gray-Box Testing

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					QATestLab
154a, Borschagivska str., Kiev, Ukraine
ph.: +38(044)501-55-38
http://qatestlab.com/
contact@qa-testlab.com



                          The Principles of Gray-Box Testing

Black-box testing focuses on the behavior and external instances of the software. It is
directed to the expected behavior of an application or program from the user’s point of
view.

White-box or glass-box testing is aimed at software with knowledge of internal data
structures, physical logic, algorithms and architecture at the program code level from the
developer's point of view.

White-box testing, as well as black-box testing, is an integral part of the whole software
testing process. Individually, they do not provide extremely good results for balanced work
of software testing company. Black-box testing can be less effective in retrieving data-flow
or boundary condition errors at the source level. As for the white-box testing, it is less
effective in finding macro-level errors in the operating system and errors, associated with
the compatibility, usability.

Gray-box testing is a combination of white-box and black-box testing. Gray-box testing is
designed to evaluate the project in terms of the interaction of its individual components.




(c) QATestLab, 2012                                                      http://qatestlab.com/
QATestLab
154a, Borschagivska str., Kiev, Ukraine
ph.: +38(044)501-55-38
http://qatestlab.com/
contact@qa-testlab.com


The gray-box testing goes mainly with the testing of web applications because it considers
high-level development, operating environment, and compatibility conditions. During black-
box or white-box analysis it is harder to identify problems, related to end-to-end data flow.
Context-specific problems, associated with web site testing are usually found during gray-
box verifying. Web applications contain a lot of elements, both software and hardware.
These components must be verified in the context of system design to estimate their
interaction and functionality.

Gray box testing consists of tools, aimed at understanding the properties of the application
and the environment with which it interacts. This approach can be used in black-box
testing in order to increase the productivity of testing, finding bugs and bugs analyzing
performance.

On the other hand, the gray box testing is the use of incomplete or suspected information
about the structure or design for further concentration or enlargement of black box testing.

Remember, that software testing is more effective with good understanding of the system
behavior and its architecture, software development, requirements of the applications,
types of bugs you are looking for. You must understand how to control the interactions
between system components in the testing and production environments.




(c) QATestLab, 2012                                                     http://qatestlab.com/

				
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Description: http://qatestlab.com/ Black-box testing focuses on the behavior and external instances of the software. It is directed to the expected behavior of an application or program from the user’s point of view.