information system concepts

2. A System is a group of interrelated
components working together towards a
common goal by accepting input producing
output in an organized transformation
process

3. Physical
Biological
Technological
Socioeconomic
Cybernetic

4. Input
Processing
Output
Feedback
Control

5.  A system doesn’t exist in a vacuum.
 It exist and functions in an environment
 A system can be a sub system of an
environment.
 Several systems may share same
environment
 Some of these may be connected to one
another by means of interface.
 Systems interact with other in its environment
are called open system
 System able to change itself to survive is
called as adaptive system

6. Input Process Output
Control
Database
Data

7. Input
Processing
Output
Storage
Control

8. Outdated, Inaccurate, hard to understand
information are meaningless.
Information should be provided in time and
up to date.
Contents of information should be free
from errors and should be related to need.
Information should be clear, details or
summary form in proper sequence.