This UML object diagram for the online auction system shows the relationships among its key components: user, auction item, bid, and payment. A user bids on auction items and pays using methods like credit cards. Notifications are triggered for successful transactions. Sellers list items for auction, which belong to specific categories like "watches." Shipping addresses ensure seamless product delivery post-auction. Auctions have predefined timelines, with start and end dates. This UML object diagram for the online auction system effectively shows a simplified online auction system. It depicts the interaction among bidders, sellers, and auction events.
