Functional testing
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In software development, functional testing is a form of software testing that verifies whether a system meets its functional requirements.[1][2]
Generally, functional testing is black-box, meaning the internal program structure is ignored (unlike for white-box testing).[3]
Sometimes, functional testing is a quality assurance (QA) process.[4]
As a form of system testing, functional testing tests slices of functionality of the whole system. Despite similar naming, functional testing is not testing the code of a single function.
The concept of incorporating testing earlier in the delivery cycle is not restricted to functional testing.[5]
Types
Functional testing includes but is not limited to:[3]
Sanity testing
Smoke testing
Regression testing
Usability testing
Six steps
Functional testing typically involves six steps[citation needed]
- The identification of functions that the software is expected to perform
- The creation of input data based on the function's specifications
- The determination of output based on the function's specifications
- The execution of the test case
- The comparison of actual and expected outputs
- To check whether the application works as per the customer need
See also
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References
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- ^ ISO/IEC/IEEE 24765:2017, "Systems and software engineering — Vocabulary", International Organization for Standardization, Geneva, Switzerland, 2017.
- ^ Page Module:Citation/CS1/styles.css has no content.ISO/IEC/IEEE International Standard - Systems and software engineering. ISO/IEC/IEEE 24765:2010(E). 2010. pp. vol., no., pp.1–418, 15 Dec. 2010.
- ^ a b Kaner, Falk, Nguyen. Testing Computer Software. Wiley Computer Publishing, 1999, p. 42. Template:ISBN.
- ^ Prasad, Dr. K.V.K.K. (2008) ISTQB Certification Study Guide, Wiley, Template:ISBN, p. vi
- ^ Page Module:Citation/CS1/styles.css has no content."Full Stack Testing". www.thoughtworks.com. Retrieved 2022-09-08.
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