eSoftUSA LLC parent company of MarketIndia.com with its offices in USA and India offers and developes E-commerce websites alternatively called (Shopping Mall, Shopping cart applications) is similar to an electronic catalog where the visitor (prospective buyer) to the site has the facility of adding the desired products with desired quantities and selecting attributes (like colors, size etc.)  into a shopping cart with the capability to view or change the quantity purchased. Then during Checkout process, he/she would provide the billing and shipping information to fulfill the order. At this point we can either add the contact management module to keep the customers profile so all the information is readily available when the same customer shops again. Contact Management feature adds the capability to customers to track their order, look up the history of old orders. It helps the store owner to track the buying styles of each customer, and creates a database of customers for future use. 

 The E-Commerce web site can have the following:

1) With or without Payment Gateway. ( Secured Transactions via Verisign or Thawte)
2) Design as per the requirement of the Shop Owner
4) Like an electronic catalog, shop owner has the complete administrative authority to make changes , or add new products , change prices , offer certain products on special pricing and any other functionality as desired by the store owner.

To see a sample E-commerce web site take a look at  Marketindia.com.  Please note that it is actual site and not a demo