Systems Analysis and Design
System Definition
What is a system?
A system is an interrelated set of components that function together to achieve an outcome. It consists of three major components:
• Input • Processing • Output
It consists of the following elements:
• Purpose • Subsystems • Environment • Boundary • Connections • Control Mechanisms
Introduction to Information Systems
* Property of STI Page 1 of 13
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Systems Analysis and Design
Information Systems
Components
Work practice Information People Information technology
Reasons for the need of an information system
growing size of the organization and the number of competitors growing ability of computers to process large amount of data with great speed dramatic increase in volumes of data generated advances in communication technologies to permit faster data transmission increase in pace of business transactions much more sophisticated technology today
Introduction to Information Systems
* Property of STI Page 3 of 13
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