| Word | Description |
| S.E.T | Secure Electronic Transaction is a protocol under development with MasterCard and Visa as a method to secure payment card transactions over the Internet. |
| Settlement | The process whereby financial institutions collect or pay out for items drawn on, or paid into, accounts in their institution. E-xact Transactions settles according to the credit card companies' agreements with banking institutions. |
| Settlement Name | This is the descriptor that will appear on the cardholder's credit card statement. This is different from a "soft descriptor" in that it cannot be dynamic per transaction and usually contains only the merchant's company name and address/phone number. |
| Shopping Basket | When you shop online, items you are going to buy are often collected in a "shopping basket" or "cart" so that you can check your list when ready to purchase them. E-xact's software has been successfully integrated into several shopping carts. |
| Shopping Cart | When you shop online, items you are going to buy are often collected in a "shopping basket" or "cart" so that you can check your list when ready to purchase them. E-xact's software has been successfully integrated into several shopping carts. |
| Silent Post | A Hosted Checkout process where E-xact transmits results to the merchant server but does not receive a response back |
| SOAP | The Simple Object Access Protocol, an XML syntax for exchanging messages. |
| Soft Descriptor | This is a label appearing on the cardholder's credit card statement allowing businesses to customize line-item descriptions on to include information such as the category of goods purchased and a customer service number. This provides additional insight into the transaction making it descriptors easier for consumers and corporate buyers to keep better purchasing records, increasing customer satisfaction and reducing customer support and dispute resolution costs. |
| SSL | Secure Sockets Layer. A widely used public security protocol, SSL creates a secure link between a web server and browser and all data sent is encrypted. E-xact requires that websites using our services have SSL. |