Can any one tell me what is the relation between Bcom(computer application) & MBA/ MIS in DEAKIN or in any other unvrsty? pls reply fast

How can i relate my Bcom (computer application) subjects with MBA / Master of Information Systems (Dual Degree ) or Why should I choose Master of Business Administration / Master of Infomation Systems (DUAL DEGREE ) as Masters after Bcom (computer application)? kindly reply Fast.plsss