Dileep Kumar

• Sep 20th, 2006

 

Hi all,

Nonfunctional requirements are defined in system requirements specification. Non functional means, Databases the we should use, networks, servers, hardwares, browsers, operating systems etc., 

cheers

jayapal reddy

• Nov 2nd, 2006

 

non functional requirements r,usability,efficiency,security,reliability,portability,delivery time,safety requirements,standards to be followed etc.

poojat07

 Profile Answers by poojat07 

• May 27th, 2009

 

Non-functional requirements are those requirements which are not explicitly mentioned by the customer. They are basically subjective in nature and differ from one person to another. The example of non-functional requirements are usability, reliability,portability,scalability, security,etc.

Regards,

Pooja.

Damixa

 Profile Answers by Damixa 

• Oct 2nd, 2010

 

A Non-functional requirement (amongst others) is Maintainabilty, portability, useabilty (the site is slow and so the site needs to be speeded up). So, Non-functional behaviour is about how a product works or how it achieves its external behaviour. EG, it may be fast or slow, or easy or difficult to use. These are non-functional characteristics, in this case related to performance and usability. Non-functional characteristics need to be tested just as carefully as functional behaviour; a system that does everything you want it to but is so slow in operation that you cannot get your job done is obviously unacceptable.