With no further messages being written by the SYSVIEW 3270 Device Driver Interface other than the STARTED and STOPPED messages, the best methodology to implement SSM control would be via the API calls made by that interface. However, at this time the 3270 Device Driver Interface does not make use of an API. Therefore, the only way to manage this interface using the System State Manager would be via the IEF403I STARTED and IEF404I STOPPED messages generated by the interface job.