The entity relationship diagram for an e-wallet system captures the core components involved in digital transactions: Users, Wallets, Cards, Bank Accounts, Payments, Merchants, Notifications, and Transactions. Users own wallets and link them with cards or bank accounts for funding.
Payments are sent to Merchants, who are categorized by services and rated for reliability. The system records all transactions, maintains wallet balances, and logs notifications to keep users informed. Security and traceability are prioritized using unique IDs, timestamps, and statuses. This ER diagram ensures smooth digital payment flows, real-time tracking, and support for banking integration.
