System Analysis and Design
System Planning
(Overview of Feasibility)
- Mr. Ahmad Al-Ghoul
Chapter Objectives



Explain the importance of
feasibility study
Discuss the operational feasibility
Discuss the technical feasibility
Avicenna
System Analysis and Design
System Planning
2
Overview of Feasibility



A systems request must pass several
tests, called a feasibility study, to see
whether it is worthwhile to proceed
further.
Feasibility Study determines the
probability of success of proposed
system’s development project and
assesses the project’s
Feasibility analysis is used to aid in
the decision of whether or not to
proceed with the IS project.
Avicenna
System Analysis and Design
System Planning
[1]
3
Overview of Feasibility







Helps us decide where to focus our efforts
A study to ascertain the feasibility of a new
system
A study to justify the NEED for a new system
and clarify potential SOLUTIONS
Gives management a basis for decisions
Feasibility study identifies direction
Analysis and models help to understand system
and needs
Focus on WHAT not HOW
Avicenna
System Analysis and Design
System Planning
4
Overview of Feasibility

Four Categories




Avicenna
Operational
Technical
Economic
Schedule
System Analysis and Design
System Planning
5
Overview of Feasibility



Operational Feasibility
Operational feasibility determines if the
human resources are available to operate
the system once it has been installed
Users that do not want a new system may
prevent it from becoming operationally
feasible
Avicenna
System Analysis and Design
System Planning
6
Overview of Feasibility

Operational feasibility vital issues









Avicenna
Management support
Users support
Workforce reduction: if new system affect workforce,
what will happen to affected employees
Users training
Users involving in new system
Performance decline in some system parts
Is there any risk to the company’s image
The development schedule is it suitable or there is a
conflict with other company priorities
Legal and ethical issues to be considered
System Analysis and Design
System Planning
7
Overview of Feasibility

Technical Feasibility



Users’ and analysts’ familiarity with the business
application area
Familiarity with technology


Have we used it before? How new is it?
Project size


Technical feasibility refers to technical resources
needed to develop, purchase, install, or operate the
system
Number of people, time, and features
Compatibility with existing systems
Avicenna
System Analysis and Design
System Planning
8
Overview of Feasibility

Points to be considered when assessing
technical feasibility






Avicenna
Does the company have necessary hardware,
software, and network resources? If not, can these
resources be acquired?
Does the company have needed technical experience?
Does the proposed platform have sufficient capacity?
Will the hardware and software environment be
reliable? Will it integrate with other company
information systems?
Will the combination of hardware and software supply
adequate performance?
Will the system be able to handle future transaction
volume and company growth?
System Analysis and Design
System Planning
9
Sequence Summary





A key activity in project planning is the assessment of
four feasibility issues associated with the project
Feasibility Study determines the probability of success of
proposed system’s development project and assesses
the project’s
Feasibilities that should be examined include
Operational, technical, economic, and schedule.
Operational feasibility determines if the human resources
are available to operate the system once it has been
installed
Technical feasibility refers to technical resources needed
to develop, purchase, install, or operate the system
Avicenna
System Analysis and Design
System Planning
10
Sequence Summary

In this Sequence we have




Avicenna
Defined the feasibility study
Explained the importance of feasibility study
Defined and described the operational
feasibility
Defined and described the technical feasibility
System Analysis and Design
System Planning
11
Reference
[1]System Analysis and Design, Sixth Edition (Chapter 2 )
Authors: Gary B. Shelly, Thomas J. Cashman and Harry J. Rosenblatt ,
Publisher: SHELLY CASHMAN SEWIES.
[2] Modern Systems Analysis and Design fourth Edition (Chapter 5 )
Authors: Jeffrey A. Hoffer , Joey F. George, Joseph S. Valacich
Publisher: prentice hall
[3] System Analysis and Design, 3rd Edition ( Chapter 2 )
Authors: Dennis, Wixom, & Roth
Publisher: John Wiley & sons
[4] SYSTEM ANALYSIS AND DESIGN, sixth edition ( Chapter 3 )
Authors: Kenneth E. Kandall and Julie E. Kendall
Publisher: prentice hall
Avicenna
System Analysis and Design
System Planning
12