Functional Testing Vs Non-Functional Testing

Functional Testing: Testing the application against business requirements. Functional testing is done using the functional specifications provided by the client or by using the design specifications like use cases provided by the design team.

Functional Testing covers:

Unit Testing
Smoke testing / Sanity testing
Integration Testing (Top Down,Bottom up Testing)
Interface & Usability Testing
System Testing
Regression Testing
Pre User Acceptance Testing(Alpha & Beta)
User Acceptance Testing
White Box & Black Box Testing
Globalization & LocalizationTesting

Non-Functional Testing: Testing the application against client's and performance requirement. Non-Functioning testing is done based on the requirements and test scenarios defined by the client.

Non-Functional Testing covers:

Load and Performance Testing
Ergonomics Testing
Stress & Volume Testing
Compatibility & Migration Testing
Data Conversion Testing
Security / Penetration Testing
Operational Readiness Testing
Installation Testing
Security Testing (ApplicationSecurity, Network Security, System Security)

17 comments:

AnonymousJune 30, 2011 at 12:11 AM
good one thanx alot for putting all the testing at one place.
AnonymousDecember 29, 2011 at 9:23 PM
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AnonymousJanuary 18, 2012 at 6:04 PM
understandable answer
AnonymousJanuary 25, 2012 at 12:00 PM
not too good..because here shown only which testing is used or helping with
functional testing or non funct..tstg.
AnonymousMarch 19, 2012 at 2:27 AM
Usability Testing is non functional testing
vidMay 1, 2012 at 10:53 PM
very nice... its so easy to understand..
Thanks a lot..
UnknownOctober 29, 2012 at 6:26 PM
Non functional testing may be performed at all test levels. The term non-functional testing describes the tests required to measure characteristics of systems and software that can be quantified on a varying scale, such as response times for performance testing.

Types of Non-functional testing are performance testing, load testing, stress testing, usability testing, maintainability testing, reliability testing and portability testing.
Source: What is non functional testing
uddieNovember 5, 2012 at 9:16 AM
thanq... it shows clear cut differences b/w functional and non functional testing... :) :)
snehalataNovember 21, 2012 at 2:55 AM
good difference of function testing and non-function testing..........thanks alot
AnonymousFebruary 18, 2013 at 1:45 AM
Nice one..
AnonymousMay 11, 2013 at 9:38 AM
great but it works more to ppl if u give brief of types of both func/non funct testing!!! thanks
Medha ChaitanyaAugust 10, 2013 at 10:50 PM
Thanks a lot
UnknownMarch 7, 2014 at 10:11 PM
How about automation? It is a repeated functional testing. also it is technical testing. Please we need difference between Functional testing and Technical testing not difference between functional and non functional.
AnonymousJune 27, 2014 at 2:48 AM
Excellent.
UnknownJuly 31, 2014 at 4:16 AM
Hi thanks for sharing about functional testing keep posting
UnknownJuly 31, 2014 at 4:43 AM
Great post & clear explanation on Functional testing
saranyaOctober 14, 2014 at 10:20 PM
not that much good...only provided categories with out any description