The majority of modern ERP systems are fully Internet-enabled systems. This means that communication between a server where an ERP systems is installed and many clients is done through the Internet. An ERP system may comprise three main tiers:
1. Clients : clients are end-users that connect to the system via Internet browsers.
2. Applications Server : An applications server incorporates a Web server, forms, system tools and a variety of ERP programs. ERP systems are considered to be a backbone of e-commerce solutions. Successful utilization of the “front-end” e-commerce solutions is unimaginable without strong support by and cooperation with the internal “back-end” computer systems. In fact, many ERP vendors combine ERP applications and e-commerce solutions in one integrated computer system.
ERP is basically a packaged business software system to allow a firm to:
1. Automate and integrate its business processes
2. Share common data and practices across the entire enterprise
3. Provide and access information in a real time environment.
It aims to integrate the firm‟s back-office processes and information flows. E-commerce on the other hand, is the use of computer systems and packaged software applications protected by network security measures to conduct online transactions.
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