AuctionBase In this project, we are developing an online e-commerce website (similar to eBay). You are implementing a version of AuctionBase (which is based on an assignment from the University of Wisconsin). User registers to the website (using a username, email, name, address, and phone number. ) Each user is identified by a unique id. • A user can be a buyer or a seller (or both). • A seller places items for Auction. • The item is identified by an ID and has a name and may belong to multiple categories, a location (which may be different from the seller location), and descriptions. • For each category, we keep track of its id, name, and description. • Auctions would have a start time, end time, and a starting asking price. • A buyer can bid on items, the bid with the highest bid win the auction. A buyer may review the seller (a rating from 1 to 5) and write feedback The seller specifies the shipping options that may include pickup, each shipping option has a price and time. • The seller provides her bank information (bank name, routing number, and account no).

Transaction processing is a computational style generally performed by server computers, which supports interactive applications (apps). Transaction processing is also known as information processing, which divides the work into indivisible and individua…