Dear Sruthi
may be check: http://help.sap.com/printdocu/core/print46c/en/data/pdf/EHSDGP/LOEHSDGP.pdf
In dangerous goods master a number of data is stored. This data is used in context of the "checks" taking into account the "frame" (e.g. which route is used, whcih material shuld be loaded together etc.) Rambabu did give short introduction regarding the standrad function modules.
C.B.