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Chapter 6
Types of information system
2.1 Introduction
Information systems (IS) refer to the provision and management of
information to support the running of an organisation.
Information Technology (IT) is the supporting equipment (hardware)
that provides the infrastructure to run the information systems.
2.2 Management information systems (MIS)
A MIS converts internal and external data into useful information
which is then communicated to managers at all levels and across all
functions to enable them to make timely and effective decisions for
planning, directing and controlling activities.
Key types of MIS
Executive information Decision support Expert system
system (EIS) system (DSS) Hold specialist
For senior executives. Aids management knowledge, e.g. law,
User friendly internal decisions. taxation.
and external System predicts Non-experts can
information. possible utilise for advice and
Option to ‘drill’ down consequences of
assistance in
to obtain detail. different scenarios. decision making.
Managers then use
judgement to make
decisions.
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