Electronic Commerce means buying and selling of goods and services across the internet. An e commerce site can be as simple as a catalog page with a phone no, or it can range all the way to a real time credit and processing site where customer can purchase downloadable goods and receive them on the spot.

E-Business is the creation of new, and the redesigning of existing value chains and business processes through the application of information technology. Naturally, e-Business is more than e-commerce. It expands the scope of e-commerce to transform the company and the industry itself.

Shopping Cart is like a store front where you can display your products,catalogue,price etc. The customer comes to your store through website 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 a Bank or Authorised Company who can accept and process credit card online.They Provide us with the payment gateway software that needs to be integrated with the website to enable secure transaction. The providers are been certified by Digital Certified Authorities like Verisign,Thwate etc which build trust among buyer and can transact safely.