Linking at the user interface level, if done correctly, can allow the Internet user to communicate with the back-end applications without changes to these applications. With the right technology these screens can be interfaced to the existing applications. The e-business web site can be brought live without impacting the existing application environment. Significant upgrade costs for software and hardware. New applications need to be customized.
Staff needs to be retrained.
Long time to market. Long time to market. An organization can use e-commerce applications that attach seamlessly to the existing business applications. An e-commerce site can thus be implemented without changing any of the existing business rules. Built in security.