Non functional testing

[andreajolie]

can anyone please tell me about non functional testing

[mfsi-satyakamm]

Non-functional testing is the testing which doesn't checks what a software applicationdoes exactly. It rather checks non-functional requirements like reliability, scalability,etc.

[reddy8518]

Non- functional testing is done for test the non-functional external factors like Memory, Cpu Utilization, Performance, Load, Usability, ETC. This testing is optional in some cases.

[mfsi_nilanjan]

Non-Functional Testing :

Typical non-functional tests include performance and reliability.It also includes load testing, stress testing, usability testing, maintainability testing, reliability testing and portability testing. It is the testing of 'how well' the system works and how fast it responds to any request.
It's target is the testing of the quality characteristics, or nonfunctional attributes of the system.The ISO 9126 standard defines six quality characteristics and the subdivision of each quality characteristic into a number of sub-characteristics.

[mfsi_sudhansup]

Hi all,
Non Functional testing is a basically done to know "How a System is supposed to do." It can be tested almost all levels of the testing.It includes load testing,stress testing,performance testing,portability testing.

[dheerajs]

Hi andreajolie

Testing can be categories in functional and non functional testing.
Functional testing test the functionality of software application, i.e. "What system should do?"
Non Functional testing test the Non functional characteristics, i.e."How efficiently and effectively the system does its task?"
Non functional characteristics can be Reliability,Robustness,Performance(load and stress), Usability,Portability,Maintainability etc.
For example: When we open some web page in a web browser, sometimes it shows "Page is loading". This is anon functional characteristics.