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Ch 13 Systems Analysis and Design
CE_IM13-1
I. Ch 13 Systems Analysis and Design
Lecture Outline
A. Competencies pg 356
1. Describe the six phases of the systems life cycle
2. Identify information needs and formulate possible
outcomes
3. Analyze existing information systems and evaluate the
feasibility of alternative systems
4. Identify, acquire, and test new system software and
hardware
5. Switch from an existing information system to a new
one with minimal risk
6. Perform system audits and periodic evaluations
B. Introduction pg 357
It takes considerable time and effort to create a system that is truly
useful.
History has many examples of where systems were not implemented
properly, such as a General Motors $40 billion attempt to automate
assembly lines, and an Internal Revenue Service’s attempt to automate
tax returns
Competent end users need to understand the importance of systems
analysis and design
They need to know the six phases of the system life cycle:
Preliminary investigation
Systems analysis
Systems design
Systems development
Systems implementation, and
Systems maintenance
C. Systems Analysis and Design pg 358
A system is a collection of activities and elements organized to
accomplish a goal
An Information system is a collection of hardware, software, people,
procedures, and data

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Ch 13 Systems Analysis and Design
CE_IM13-2
Organizations need to change their information systems when they go
through changes such as:
organizational growth,
mergers and acquisitions,
new marketing opportunities,
revisions in governmental regulations, and the
availability of new technology
Systems analysis and design is a six phase problem-solving procedure
for examining and improving an information system. Steps include:
Preliminary investigation: problems & needs are identified
Systems analysis: present system studied, new requirements specified
Systems design: new or alternative system is planned
Systems development: new hardware & software are acquired,
developed, and tested
Systems implementation: new system installed and people trained to
use it
Systems maintenance: ongoing improvements and updates
Systems analysts are the key people that utilize these phases to
develop systems
Many times end users develop there own systems since there is a
backlog in the IT department, so it is helpful to use these phases
D. Phase 1: Preliminary Investigation pg 359
The preliminary investigation is usually initiated by an end user or
manager who wants a system to do something it doesn’t currently do.
The text introduces an fictitious organization called “Advantage
Advertising” to introduce system life cycle concepts
Three key tasks to complete during the preliminary investigation phase
include:
Briefly defining the problem
Suggesting alternative solutions
Preparing a short report
After presenting the report, the managers must make a decision on
how best to proceed with the system changes. They can
Ask for more information
Kill the project
Table the project: put it on hold for a later date
Move forward with the project
Note: these decisions will be made at the end of each phase in the
systems life cycle
1. Defining the Problem
Start by examining whatever current information system is in
use
Use interviews and observations to determine what information
is needed, by whom, when, and why

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I. Ch 13 Systems Analysis and Design Lecture Outline A. Competencies pg 356 1. Describe the six phases of the systems life cycle 2. Identify information needs and formulate possible outcomes 3. Analyze existing information systems and evaluate the feasibility of alternative systems 4. Identify, acquire, and test new system software and hardware 5. Switch from an existing information system to a new one with minimal risk 6. Perform system audits and periodic evaluations B. Introduction pg 357 It takes considerable time and effort to create a system that is truly useful. History has many examples of where systems were not implemented properly, such as a General Motors $40 billion attempt to automate assembly lines, and an Internal Revenue Service’s attempt to automate tax returns Competent end users need to understand the importance of systems analysis and design They need to know the six phases of the system life cycle: Preliminary investigation Systems analysis Systems design Systems development Systems implementation, and Systems maintenance C. Systems Analysis and Design pg 358 A system is a collection of activities and elements organized to accomplish a goal An Information system is a collection of hardware, software, people, procedures, and data Organizations need to change their information systems when they go through changes such as: organizational growth, mergers and acquisitions, new marketing opportunities, revisions in governmental regulations, and the a ...
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