what is functional testing

is it also calles as black box testing

Tags: functional, testing

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Permalink Reply by vimal on May 3, 2010 at 6:35pm

Hi,

Functional Testing means you have to test each and Every Functionality test as per SRS and FRS.

Regards
Vimal

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Permalink Reply by Siddiq on May 3, 2010 at 8:27pm

Testing the Functional quality factor of the Quality is Functional Testing.

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Permalink Reply by krishna on May 4, 2010 at 3:40pm

Hmm....

Functional Testing is a nothing but black box testing/ Manual Testing.(Fucational testing is another Name to Black box or Manual testing).Hence its nothing but a Testing Tecnique.(for eg : White box testing is also called Structural testing).
In Brief :
1. Tests of Business Requirements based on external specifications without knowledge of how the system is constructed
2. Checking against the Requirements as specified by the customer
3. Begins at System Testing and ends with UAT

Lowe level Techniques Involved:
Equivalence partitioning
Boundary value analysis
Input and Output domain

High Level Techniques
Decision Table
Flowchart
State diagrams

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Permalink Reply by Ravi M on September 28, 2010 at 12:19pm

Thanks for nice answer..

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Permalink Reply by Gargi Mohanty on May 4, 2010 at 3:45pm

The application can be divided into finite number of testable units based on the functionalities.Tests are conducted to verify these from the input and output point of view and not on the structure or implementation. This process is called Functional Testing.

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Permalink Reply by Krishna Prasad on May 4, 2010 at 3:49pm

Functional Testing: It's a type of GUI testing where functionality of an application is tested.

To be specific:
Testing of all features and functions of a system [software, hardware, etc.] to ensure requirements and specifications are met.

Functionality testing of software is testing conducted on a complete, integrated system to evaluate the system's compliance with its specified requirements. Functionality testing falls within the scope of black box testing, and as such, should require no knowledge of the inner design of the code or logic.

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Permalink Reply by Siddiq on May 4, 2010 at 5:05pm

@ Krishna,

Who said you functional testing "It's a type of GUI testing where functionality of an application is tested." ???

Thanks,
Siddiq

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Permalink Reply by vivek on May 4, 2010 at 6:33pm

functional testing its not GUI testing

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Permalink Reply by varsha jain on May 4, 2010 at 4:15pm

Thanks to all

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Permalink Reply by Ajay Pardhi on May 4, 2010 at 5:41pm

M Agree with siddhiq

Functional testing is not a type of GUI

actually it is subset of Black box testing

Thanks And Regards
Ajaykumar Pardhi

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Permalink Reply by Ravi M on September 28, 2010 at 12:15pm

I'll agree with u r answer but it will not test the hardware requirements it will test only the functional side of the application. Normally as far as my idea will concern at the time of system testing we will deploy the build into our deployment premises and then divide into functional side and non-functional side black box testing completely on functional side.

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Permalink Reply by Kiran Kumar on September 28, 2010 at 1:53pm

Functionality testing of software is testing conducted on a complete, integrated system to evaluate the system's compliance with its specified requirements. Functionality testing falls within the scope of black box testing.

For more information, read this ARTICLE.

-Kiran