Electronic Commerce or e-commerce is about the exchange of business information over the internet. This includes Internet shopping, the downloading and selling of software and documents as well as business to business transactions.
Mid-market solutions can be used to conduct specific ecommerce activities like shopping cart and order processing, and can also be integrated with other products to round out the solution. In most instances, mid-sized businesses need to conform business processes to the software’s structure, and there is little flexibility.
Business that provide ecommerce solutions are called Commerce Service Providers (CSP).
E-commerce website should offer absolute security for all the transactions. It is crucial that a proper choice of payment gateway is made. A payment gateway acts as an intermediary between the website’s shopping cart and all the financial networks involved with the transaction. | 
