I have to test an application that is a middlewere piece.
Basically this application gets data in the form of XML file from counties ( this is a state position) and process it through a screen scraping tool and store it on Mainframes.

data flow is as follows:
from county(xml schema)-> Web Sphere(through https (same xml file)) -> Cloverleaf -> Screen scraping tool -> Main frames.(DB2 database)

I do not have any front end, ALL that I can do is to see in the mainframes if the data is residing correctly or not.

Can anyone guide me how to test this application utilizing QTP or manually

Please note: I have very narrow timelines to make a Test Plan that should include all the testing techniques that can be performed.