IT conversion takes place when the system has error or to improve functionalities or to expand the capacity of the system considering database, facilities , modules etc. for the conversion of system five components of system should be considered namely, hardware, software, data, procedure and people. While conversion of system any of these components should not be affected or the system conversion is not successful. There are four ways to system conversion, they are:
* Direct cutover method: in this method a complete new system is introduced cutting off the old system.
This is the riskiest method to follow for system conversion. * Pilot conversion: in this method a part of an organization uses the new system while the rest of it continues to use the old method. In this method interface problem may prevail when the system needs to share data. * Phase conversion: In this method the part of the new system is introduced while the rest of the old one remains in use.
In this method as well interface problem may prevail when the system needs to share data. * Parallel conversion: In this method, the whole new system is introduced while the old one is still in use.
Both systems process all activity and the results are compared. Once there is confidence that the new one operates properly, the old one is shut down. For the proposed system the Phase conversion method is suggested as the system needs to operate for 24/7 and any kind of delay to run the application is occurred huge loss is to be suffered by the business as the overall business is relied on the web application. As the phase conversion method just add the new module to the system without affecting the old system, so the system can run continuously even when the change is taking place in the system.