$2.$ Artet uses the Internet and an electronic commerce website to connect to its customers and suppliers, and to capture data and share information about sales orders and purchases. Sales and order data are processed immediately, and inventory and other data bases are updated. Videoconferencing and electronic mail services are also provided. Data generated by a chemical refinery process are captured by sensors and processed by a computer that also suggests answers to a complex refinery problem posed by an engineer. Managers and business professionals access reports on a periodic, exception and demand basis, and use computers to interactively assess the possible results of alternative decisions. Finally, top management can access text summaries and graphics displays that identify key elements of organizational performance and compare them to industry and competitor performance.

Artet has started forming business alliances and using intranets, extranets, and the Internet to build a global electronic commerce website to offer their customers worldwide products and services. Artet is in the midst of making fundamental changes to their computer$-$based systems to increase the efficiency of their E$-$business operations and their managers$$ ability to react quickly to changing business conditions.

There are several different types of information systems at Artet. Identify each of them, highlighting the rationale behind your identification of a system in each case.