testing and evaluating the solution with test data such as:

volume data

Volume data ensures that the system works when subjected to large amounts of data. This form of system testing is commonly used for systems that require large amounts of data to be entered. For example, a census. A poor result of this system testing would be that the data takes too long to reach the system, or that the system crashes. A successful result of this system would be that the data has enterend and gone through the system smoothly.

simulated data

Simulated test data aims to test the performance of systems under simulated operational conditions, such as when many users, connections or different processes are all occurring in different combinations and at the same time. Software is used to simulate this situation. Such simulated testing aims to evaluate the system performance under a variety of different scenarios. For example under anticipated maximum loads, when part of the system fails, when exceptional loads are applied, when users don't respond to prompts or simply cancel or close windows during operations, when the network cannot support the number of requests, etc.

live data

Live data uses actual data that has been processed after installation to ensure it'll operate under real conditions. A successful result of live data activity is that the system is notified of any data changes. An unsuccessful result of live data activity is that the system is not notified of any data changes

checking to see that the original system requirements have been achieved:

trialling and using the operation manual

An Operation Manual details the set procedures the participants follow when using a new system.

reviewing the effect on users of the information system, participants and people within the environment

modifying parts of the system where problems are identified