Any test focused on ?how much? instead of ?how fast?. Often related to database testing. The distinction between "volume" and "load
" is that volume focuses on high volume and does not need to represent "real" usage.
Subject the product to heavy volumes of data. This form of testing shows that the application can not handle the volume of data specified in its objectives. For instance, batch process designed to import data on a nightly basis may have a limit to the amount of information it can handle before failing, so give the system a larger amount than this to see how it responds.
Verifies the system's performance if a large amount of transactions and data is generated and used.