Transcript Systems Analysis and Design Allen Dennis and Barbara Haley

COIT 11226
Systems Analysis and Specification
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PowerPoint Presentation for Dennis, Wixom, & Roth Systems Analysis and Design, 3rd Edition
Copyright 2006 © John Wiley & Sons, Inc. All rights reserved.
Assessment
Group work for assessments 2 and 3
How to make your group work
Individual commitment
Individual expectations of each other
Assessment Item 1 – 10%
Online Quiz
Assessment Item 2 – 25%
Feasibility Report
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PowerPoint Presentation for Dennis, Wixom, & Roth Systems Analysis and Design, 3rd Edition
Copyright 2006 © John Wiley & Sons, Inc. All rights reserved.
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Assessment (cont)
Assessment Item 3 – 35%
Analysis Report
Individual Reflection on your team and
how you worked as part of the team
Assessment Item 4
Exam 35%
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PowerPoint Presentation for Dennis, Wixom, & Roth Systems Analysis and Design, 3rd Edition
Copyright 2006 © John Wiley & Sons, Inc. All rights reserved.
Expectations of Students
Attend all the lectures
Attend all the tutorials
Do the tutorial work yourself
Read the text
Do supplementary reading
Interact with other students, lecturers and
tutors
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PowerPoint Presentation for Dennis, Wixom, & Roth Systems Analysis and Design, 3rd Edition
Copyright 2006 © John Wiley & Sons, Inc. All rights reserved.
4
Expectations of Students
This course requires a minimum of 9-12
hours of work outside of class for the
average student who has a good
command of the English language
Regular access to your email.
Groups work best if they set the ground
rules at the beginning of term.
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PowerPoint Presentation for Dennis, Wixom, & Roth Systems Analysis and Design, 3rd Edition
Copyright 2006 © John Wiley & Sons, Inc. All rights reserved.
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Academic Honesty
What is it?
“Academic honesty is a cornerstone
of the development and acquisition
of knowledge. Academic honesty is
a condition of continued
membership in the university
community. “
http://www.sfu.ca/policies/te
aching/t10-02.htm accessed
25/2/03
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PowerPoint Presentation for Dennis, Wixom, & Roth Systems Analysis and Design, 3rd Edition
Copyright 2006 © John Wiley & Sons, Inc. All rights reserved.
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Academic Honesty
“Academic dishonesty, like other forms of
dishonesty, includes misrepresentation with intent to
deceive or without regard to the source or the
accuracy of statements or findings. Academic
dishonesty, in whatever form, is ultimately
destructive of the values of the University; it is
furthermore unfair and discouraging to the majority
of students who pursue their studies honestly.
Scholarly integrity is required of all members of the
University”
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http://www.sfu.ca/policies/teaching/t10-02.htm accessed
PowerPoint Presentation for Dennis, Wixom, & Roth Systems Analysis and Design, 3rd Edition
28 February
2008
25/2/03
Copyright 2006 © John Wiley & Sons, Inc. All rights reserved.
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Forms of Academic Dishonesty
Plagiarism
Cheating in exams
Presenting others work as your own
Not referencing your sources
Not including the source when you quote or use
another's ideas in your text of an assignment
Presenting similar assignments when working in
groups
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PowerPoint Presentation for Dennis, Wixom, & Roth Systems Analysis and Design, 3rd Edition
Copyright 2006 © John Wiley & Sons, Inc. All rights reserved.
8
Reference Resource Link
http://www.library.cqu.edu.au/compass/
organise/referencing.htm
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PowerPoint Presentation for Dennis, Wixom, & Roth Systems Analysis and Design, 3rd Edition
Copyright 2006 © John Wiley & Sons, Inc. All rights reserved.
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Extension Policy
Refer to the website.
Note that in all cases full original
documentation must be supplied or the
request will be refused.
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PowerPoint Presentation for Dennis, Wixom, & Roth Systems Analysis and Design, 3rd Edition
Copyright 2006 © John Wiley & Sons, Inc. All rights reserved.
10
Systems Analysis and Design
Third Edition
Alan Dennis, Barbara Haley Wixom, and Roberta Roth
John Wiley & Sons, Inc.
Slides by Candace S. Garrod
Red Rocks Community College
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PowerPoint Presentation for Dennis, Wixom & Roth Systems Analysis and Design, 3rd Edition
Copyright 2006 © John Wiley & Sons, Inc. All rights reserved.
Overview
Identify the phases in the Systems
Development Life Cycle (SDLC)
Identify the steps in each phase
Identify the roles associated with a
project team
Describe each team role
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PowerPoint Presentation for Dennis, Wixom, & Roth Systems Analysis and Design, 3rd Edition
Copyright 2006 © John Wiley & Sons, Inc. All rights reserved.
Planning
Chapter 1
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PowerPoint Presentation for Dennis, Wixom & Roth Systems Analysis and Design, 3rd Edition
Copyright 2006 © John Wiley & Sons, Inc. All rights reserved.
The Systems Development Life Cycle
(SDLC)
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PowerPoint Presentation for Dennis, Wixom & Roth Systems Analysis and Design, 3rd Edition
Copyright 2006 © John Wiley & Sons, Inc. All rights reserved.
The SDLC is composed of four
fundamental phases:
Planning
Analysis
Design
Implementation
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PowerPoint Presentation for Dennis, Wixom, & Roth Systems Analysis and Design, 3rd Edition
Copyright 2006 © John Wiley & Sons, Inc. All rights reserved.
Each of the phases include a set of
steps, which rely on techniques that
produce specific document files that
provide understanding about the
project.
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PowerPoint Presentation for Dennis, Wixom, & Roth Systems Analysis and Design, 3rd Edition
Copyright 2006 © John Wiley & Sons, Inc. All rights reserved.
To Understand the SDLC:
Each phase consists of steps that lead
to specific deliverables
The system evolves through gradual
refinement
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PowerPoint Presentation for Dennis, Wixom, & Roth Systems Analysis and Design, 3rd Edition
Copyright 2006 © John Wiley & Sons, Inc. All rights reserved.
Phase I: Planning
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PowerPoint Presentation for Dennis, Wixom, & Roth Systems Analysis and Design, 3rd Edition
Copyright 2006 © John Wiley & Sons, Inc. All rights reserved.
This phase is the fundamental process of
understanding why an information
system should be built.
The Planning phase will also determine
how the project team will go about
building the information system.
The Planning phase is composed of two
planning steps.
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PowerPoint Presentation for Dennis, Wixom, & Roth Systems Analysis and Design, 3rd Edition
Copyright 2006 © John Wiley & Sons, Inc. All rights reserved.
Two Planning Steps
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PowerPoint Presentation for Dennis, Wixom, & Roth Systems Analysis and Design, 3rd Edition
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1. During project initiation, the system’s
business value to the organization is
identified (How will it lower costs or increase
revenues?)
2. During project management, the project
manager creates a work plan, staffs the
project, and puts techniques in place to help
the project team control and direct the project
through the entire SDLC.
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PowerPoint Presentation for Dennis, Wixom, & Roth Systems Analysis and Design, 3rd Edition
Copyright 2006 © John Wiley & Sons, Inc. All rights reserved.
Phase II: Analysis
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PowerPoint Presentation for Dennis, Wixom, & Roth Systems Analysis and Design, 3rd Edition
Copyright 2006 © John Wiley & Sons, Inc. All rights reserved.
The analysis phase answers the questions of
who will use the system, what the system will
do, and where and when it will be used.
During this phase the project team investigates
any current system(s), identifies improvement
opportunities, and develops a concept for the
new system.
This phase has three analysis steps.
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PowerPoint Presentation for Dennis, Wixom, & Roth Systems Analysis and Design, 3rd Edition
Copyright 2006 © John Wiley & Sons, Inc. All rights reserved.
Three Analysis Steps
1. Analysis strategy: This is developed to
guide the projects team’s efforts. This
includes an analysis of the current system.
2. Requirements gathering: The analysis of
this information leads to the development of a
concept for a new system. This concept is
used to build a set of analysis models.
3. System proposal: The proposal is presented
to the project sponsor and other key
individuals who decide whether the project
should continue to move forward.
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PowerPoint Presentation for Dennis, Wixom, & Roth Systems Analysis and Design, 3rd Edition
Copyright 2006 © John Wiley & Sons, Inc. All rights reserved.
The system proposal is the initial deliverable
that describes what business requirements the
new system should meet.
The deliverable from this phase is both an
analysis and a high-level initial design for the
new system.
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PowerPoint Presentation for Dennis, Wixom, & Roth Systems Analysis and Design, 3rd Edition
Copyright 2006 © John Wiley & Sons, Inc. All rights reserved.
Phase III: Design
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PowerPoint Presentation for Dennis, Wixom, & Roth Systems Analysis and Design, 3rd Edition
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In this phases it is decided how the
system will operate, in terms of the
hardware, software, and network
infrastructure; the user interface, forms,
and reports that will be used; and the
specific programs, databases, and files
that will be needed.
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PowerPoint Presentation for Dennis, Wixom, & Roth Systems Analysis and Design, 3rd Edition
Copyright 2006 © John Wiley & Sons, Inc. All rights reserved.
Five Design Steps
1. Design Strategy: This clarifies whether the
2.
3.
4.
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system will be developed by the company or
outside the company.
Architecture Design: This describes the
hardware, software, and network
infrastructure that will be used.
Database and File Specifications: These
documents define what and where the data
will be stored.
Program Design: Defines what programs
need to be written and what they will do.
PowerPoint Presentation for Dennis, Wixom, & Roth Systems Analysis and Design, 3rd Edition
Copyright 2006 © John Wiley & Sons, Inc. All rights reserved.
Phase IV: Implementation
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PowerPoint Presentation for Dennis, Wixom, & Roth Systems Analysis and Design, 3rd Edition
Copyright 2006 © John Wiley & Sons, Inc. All rights reserved.
During this phase, the system is either
developed or purchased (in the case of
packaged software).
This phase is usually the longest and
most expensive part of the process.
The phase has three steps.
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PowerPoint Presentation for Dennis, Wixom, & Roth Systems Analysis and Design, 3rd Edition
Copyright 2006 © John Wiley & Sons, Inc. All rights reserved.
Three Implementation Steps
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PowerPoint Presentation for Dennis, Wixom, & Roth Systems Analysis and Design, 3rd Edition
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System Construction: The system is
built and tested to make sure it performs
as designed.
Installation: Prepare to support the
installed system.
Support Plan: Includes a postimplementation review.
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PowerPoint Presentation for Dennis, Wixom, & Roth Systems Analysis and Design, 3rd Edition
Copyright 2006 © John Wiley & Sons, Inc. All rights reserved.
Project Team Members
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PowerPoint Presentation for Dennis, Wixom, & Roth Systems Analysis and Design, 3rd Edition
Copyright 2006 © John Wiley & Sons, Inc. All rights reserved.
Project Team Skills and Roles
Projects should consist of a variety of skilled
individuals in order for a system to be
successful.
Six major skill sets an analyst should have
include:
Technical
Business
Analytical
Interpersonal
Management
Ethical
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PowerPoint Presentation for Dennis, Wixom, & Roth Systems Analysis and Design, 3rd Edition
Copyright 2006 © John Wiley & Sons, Inc. All rights reserved.
Categories of Analysts
Business Analyst
Systems Analyst
Infrastructure Analyst
Change Management Analyst
Project Manager
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PowerPoint Presentation for Dennis, Wixom, & Roth Systems Analysis and Design, 3rd Edition
Copyright 2006 © John Wiley & Sons, Inc. All rights reserved.
Business Analyst
Analysing the key business aspects
of the system
Identifying how the system will
provide business value
Designing the new business
processes and policies
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PowerPoint Presentation for Dennis, Wixom, & Roth Systems Analysis and Design, 3rd Edition
Copyright 2006 © John Wiley & Sons, Inc. All rights reserved.
Systems Analyst
Identifying how technology can improve
business processes
Designing the new business processes
Designing the Information System
Ensuring that the system conforms to
information systems standards
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PowerPoint Presentation for Dennis, Wixom, & Roth Systems Analysis and Design, 3rd Edition
Copyright 2006 © John Wiley & Sons, Inc. All rights reserved.
Infrastructure Analyst
Ensuring the system conforms to
infrastructure standards
Identifying infrastructure changes needed
to support the system
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PowerPoint Presentation for Dennis, Wixom, & Roth Systems Analysis and Design, 3rd Edition
Copyright 2006 © John Wiley & Sons, Inc. All rights reserved.
Change Management Analyst
Developing and executing a Change
Management Plan
Developing and executing a User
Training Plan
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PowerPoint Presentation for Dennis, Wixom, & Roth Systems Analysis and Design, 3rd Edition
Copyright 2006 © John Wiley & Sons, Inc. All rights reserved.
Project Manager
Managing the team of Analysts,
programmers, technical writers and other
specialists
Developing and monitoring the Project
Plan
Assigning resources
Serving as the primary point of contact
for the project
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PowerPoint Presentation for Dennis, Wixom, & Roth Systems Analysis and Design, 3rd Edition
Copyright 2006 © John Wiley & Sons, Inc. All rights reserved.
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John Wiley & Sons, Inc.
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PowerPoint Presentation for Dennis, Wixom, & Roth Systems Analysis and Design, 3rd Edition
Copyright 2006 © John Wiley & Sons, Inc. All rights reserved.