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ICT2621 exam preparation - Full summary
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Test Bank for Dennis, Wixom, RothSystems Analysis and Design, 8th Edition
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Solution Manual for Systems Analysis and Design, 8th Edition by Alan Dennis, Barbara Wixom, Roberta M. Roth
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Solutions For Systems Analysis and Design 8th Edition by Alan Dennis.docx
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et 262A, Introduction
What is Information tecnology ?
refers to the combination of hardware software and services that
people use
to manage communicate and share information .
System and design for high
analysis is a
step by step process developing
information
quality systems .
Information system components :
system related that
b a is a set of
components
produces specific results .
a Mission critical system is one that is vital to the
company
's
operations .
Hardware of the
consists
everything in
physical layer
of the Information system .
Software
refers to control and desired
* Follows on next page
programs
that the hardware
produce the
information or results .
Cosi sts software
of system and
application software
-
.
Data Raw material information transforms useful
that
system into
information
Processes Describes functions
the tasks performed
=
and business being
to achieve
specific results .
People =
Includes the stakeholders .
, System software :
manages the hardware
components which can include a
single computer or
global network with thousands of clients .
Application software :
consists of
programs
that
support day to
day business functions .
Horizontal
system
•
system that can be adapted for use
different
types
in of
many companies .
Vertical system
•
Designed to meet unique requirements
of a
specific company .
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