19-11-2012, 11:37 PM
i need a 0 level dfd for online auction system. it consists of three modules, namely, seller(who is selling the product), buyer( bidder bidding for the product), and an admin.
sellers functionality are to register, pay to upload new product upload new product, view product status, take payment from highest bidder, and ship it to the customer.
buyers functionality are to register, bid, and pay for bid