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Analysis and Design
Information Systems
In the previous section we studied about various classification of systems. Since
in business we mainly deal with information systems we'll further explore these
systems. We will be talking about different types of information systems prevalent
in the industry.
Information system deals with data of the organizations. The purposes of Information
system are to process input, maintain data, produce reports, handle queries, handle
on line transactions, generate reports, and other output. These maintain huge
databases, handle hundreds of queries etc. The transformation of data into information
is primary function of information system.
These types of systems depend upon computers for performing their objectives.
A computer based business system involves six interdependent elements. These are
hardware (machines), software, people (programmers, managers or users), procedures,
data, and information (processed data). All six elements interact to convert data
into information. System analysis relies heavily upon computers to solve problems.
For these types of systems, analyst should have a sound understanding of computer
technologies.
In the following section, we explore three most important information systems
namely, transaction processing system, management information system and decision
support system, and examine how computers assist in maintaining Information systems.
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