("natural information") is an assortment of numbers or characters before it has been "cleaned" and revised by analysts, Crude information should be revised to eliminate exceptions or clear instrument or information passage blunders le.g., a thermometer perusing from an open air Arctic area recording a tropical temperature}. Information handling normally happens by stages, and the \"handled information" from one phase might be viewed as the "crude information" of the following stage. Field information is crude information that is gathered in an uncontrolled "in situ\" climate. Trial information is information that is produced inside the setting of a logical examination by perception and recording