The article discusses the current reshaping of internet as regards digital business. Definitions are provided for the concept of electronic commerce and the foundations on which to develop an e-commerce project are described. Highlighted is the importance of tools for building customer loyalty for successful e-commerce projects and a model is proposed for representing the relationship between the corporate information system and processes for capturing clients. Finally, the authors stress the need to integrate the tools managing client information with the overall corporate information system. Likewise, the feedback generated by the information system must be incorporated back into business procedures in order to improve client services and satisfaction.