what is Scalability testing?

what is Scalability testing?

Scalability Testing is non-functional tests, is the testing of a software application for measuring its capability to scale up in terms of any of its non-functional capability like load supported, the number of transactions, the data volume etc.

[QUOTE=jainbrijesh;13501]Scalability Testing is non-functional tests, is the testing of a software application for measuring its capability to scale up in terms of any of its non-functional capability like load supported, the number of transactions, the data volume etc.[/QUOTE]

when Scalability testing they do in testing in real time?& what do they will get by this testing ............?

[QUOTE=sumath_620;13506]when Scalability testing they do in testing in real time?& what do they will get by this testing ............?[/QUOTE]

Actually this can be done at the time of performance testing itself.