ABSTRACT

By the end of this unit you will be able to: • Be more confident in the language and the basic concepts of information systems. • Appreciate why information systems are needed. • Differentiate between data and information. • Use the model of an information system and understand its components. • Recognize the similarities and differences between the different models of information systems. • Appreciate the different levels of the information system and the different roles. • Recognize the links between marketing information systems and management information

systems. • Understand the characteristics of an information system.