Usman Abdul Rashid's assignment discusses the four main types of management information systems (MIS) in order of increasing sophistication:
1. Transaction processing systems (TPS) are designed to handle high volumes of routine transactions like payroll, orders, and inventory tracking. TPS produce information for other systems and are used by operational and supervisory personnel.
2. Management information systems (MIS) provide structured information to help middle managers ensure smooth operations by comparing current and past performance. MIS include sales, inventory, budgeting and personnel systems.
3. Decision support systems (DSS) provide managers interactive tools to make intelligent decisions. DSS have databases, models, and interfaces to support semi-structured