When the online trading system starts but before the market is open, it is difficult to verify that the system is working properly. Typically, any problems will become visible when trading starts, and then it is too late to fix them without experiencing downtime. This situation can occur when the system is restarted as well as when it has first been started in the morning.
So there is the great need of some exchange simulator/simulated subsystem which can simulate trading environment before market opens on next trading day. This utility or subsystem should be capable enough to verify the important exchange related functionalities which include placing orders and deals, checking all the available external and internal network gateways, member login and logout issues etc. Simulated Stock Exchange can be used in case the exchange faces technical issues, there will be a downtime which may have a significant impact on the cost and could result in huge monetary losses.
The idea behind simulated stock exchange is to simulate trading in order to verify that the system and all network gateways (NG) are working correctly. This is done by having a verification utility installed on the backend network that acts as a client and logs into each network gateway, performs a dummy trade in dummy market and then logs out. One can carry out monitoring and surveillance activity through Application Management Tool (AMT) - Console based and Patrol (Console and Agent)(also known as BMC Performance Manager) - GUI based.
good info bosss
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