ER diagram for online auction management system ....etc

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Hello ,sir I am Sagar and I want to make data dictionary diagram for my agriculture android application which is purpose on farmer and traders , Farmer will sell the crops and traders will buy the crops. ....etc

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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
....etc

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Online Auction Server ....etc

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ABSTRACT




In the real world, many people are using online auctions for their easy business, which is a marvelous thing. The objective of this project is to implement an ËœOpen Cry Auction Serverâ„¢, which is application software for online auction transactions. It is a web application and has a database server for storing and retrieving data entered during the time of online transactions like buying and selling the items. This report describes the software architecture and describes the various processes that comprise the auction ....etc

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please draw a data flow diagram level1 for me ....etc

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thank u v thank u thank u thank u thank u v thank u thank u thank u thank u v v thank u thank u thank u ....etc

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Please provide me DFD for Online auction and Bidding ....etc

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what is auction system?what it is basicaly about? ....etc

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Abstract

Title of the project: Net Auction
Introduction:
Here we'll talk about the three different types of auctions you can come across. But before we go into that, here is a brief introduction to auctions.
Auction:
An auction is a sale in which a seller presents his product on a public platform/ forum. The selling price in an auction is determined by the bids made by interested buyers. The price they bid is based on their own valuation of, and need for, the product. The product is sold to the highest bidder. A potential buyer partic ....etc

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