My sample learning project requirement is after the listener reads files, need to store in table by agent  in background and initiate work object for every file(record), map that data on first screen. 

Is using Standard agent Ok before work object or should go for Advanced ? Do I need to create extra table or can I use PR_SYS_QUEUE to store those files ? when it is not work object related data yet can I use standard agent ? I'm new to pega and couldn't decide what rules to be taken and what steps should we write in agent activity and service method activity to achieve this. Thank you