E-Business is the creation of new, and the re-designing of existing value chains and business processes through the application of information technology. Naturally, e-Business is larger than e-commerce. It expands the scope of e-commerce to renovate the company and the industry.

Shopping Cart is like a store where you can display your Products, Catalogue, Price etc. The customer comes to your store through Web site and selects the item which he requires, after selection gets completed he will be shown with the total amount to be paid for the items he has selected. He would be given an option for paying through Credit Card and complete the transaction.

Now the Payment Gateway Service Provider comes into picture who are authorized to accept credit card on behalf of merchant. It may be through a Bank or an Authorized personal who can accept and process credit card online. They Provide us with the payment gateway software that needs to be integrated with the web site to enable secure transaction. Most providers are certified by Digital Certified Authorities like Verisign, Thwate etc who build trust among the buyers and thus enabling safer transactions.