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Introduction to Information Technology - Organizational Systems Wal-Mart is one of the largest retailers in the world based out of the United States with locations in other countries as well. Running an organization the size of Wal-Mart is a humongous task that requires reliance on heavy duty IT systems. Some of the biggest IT systems Wal-Mart uses include a Transaction Processing System, Management Information System, and Decision Support System. Its Transaction Processing System makes all routine daily tasks automated using raw data as its input. It then summarizes, records, and synchronizes this data. It uses a universal product code to ensure accurate pricing, improve efficiency, reduce shrinkage, and enhance communication amongst different channels. The TPS uses a satellite system and electronic scanning of UPC (uniform product code) at the POS or point of scanning (Fishman, 2006). The Management Information System or MIS uses data collected from the TPS by creating performance and evaluation reports used by middle management. These are usually used to explain, and assess information collected for financial purposes and evaluations. The other major IT system Wal-Mart uses is a DSS or a Decision Support System which is used primarily by executive management. Ever since Wal-Mart started using DSS, its profits and customer satisfaction ratings rose dramatically. Its DSS is also commonly known as a data warehouse, a digital hub where its entire customer related information is systematically stored for convenient use and streamlining operations (Ohlinger, 2006). This database is the world’s largest non-military database that provides value to both the business and its customers (Westerman, 2000). A decade and a half ago Wal-Mart was ranked 2nd leading organization in sales thanks to its IT management systems (Forbes, 2000). It has been able to maintain this

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