A payment gateway and aggregator are both systems used in online transactions to facilitate the transfer of funds from a customer to a merchant. However, they serve different roles and have distinct characteristics. Payment Gateway A payment gateway is a technology infrastructure that enables the secure transfer of payment information between a customer, a merchant, and the financial institutions involved in the transaction. It acts as an intermediary between the customer's payment method (such as a credit card) and the merchant's bank account. Key features of a payment gateway include: Payment processing: A payment gateway processes the payment transaction, securely transmitting the customer's payment information to the relevant financial institutions for authorization and settlement. Security: Payment gateways employ various...