Information Systems
Analysis and Design
Myriam Lewkowicz
myriam.lewkowicz@u
tt.fr
2
Outline
1. Information Systems: the big picture
2. Information Systems for competitive advantage
3. Organizational Information Systems
4. Entreprise-Wide Information Systems
5. Information Systems Development & Acquisition
6. Managing the Information Systems Project
7. Systems Planning
8. Determining System Requirements
9. Structuring System Requirements: Process Modeling
10. Structuring System Requirements: Conceptual Data Modeling
11. Object Oriented Analysis and Design
12. Designing the Human Interface
13. Systems Implementation and Operation
Chapter 1
Information Systems:
The Big Picture
myriam.lewkowicz@u
tt.fr
4
Chapter 1 Objectives
Understand the term information systems (IS)
Understand IS components:
Technology, people, organizations
Understand IS career opportunities

modifies, or synthesizes knowledge in one’s
profession
Knowledge Society
Also called digital society, new economy
Working with brains instead of hands
The importance of education
Digital divide
myriam.lewkowicz@u
tt.fr
9
Technology and Information Systems
Computer-Based Information Systems
One type of technology
Technology – any mechanical and/or electrical means to
supplement, extend, or replace human activity
Information Technology (IT) – machine technology
controlled by or using information
The goal of IS is to provide useful data to users
IS can be local or global, organizational or enterprise-wide
myriam.lewkowicz@u
tt.fr
10
IS Managerial Personnel
CIO
IS director
Account Executive
Info Center Manager
Development Manager
Project Manager
Maintenance Manager

Hot Skills in IS Workers
Office / E-mail
Languages
Applications
RDBS Administration
Development Tools
Internetworking
Operating Systems
LAN Administration
Networking
myriam.lewkowicz@u
tt.fr
13
IS Within the Firm
Traditionally a love/hate relationship
“Techies” vs. mere “users” (us vs. them)
Poor service, lousy attitudes
Now: progress toward better customer service
Better relationships within the company
Cooperation, not rivalry
myriam.lewkowicz@u
tt.fr
14
The Spread of Technology in Organizations
Technology infiltrates business units
Dual role for IS workers:
Work with IS technical group
Work with business unit (marketing, finance, etc.)
myriam.lewkowicz@u
tt.fr

myriam.lewkowicz@u
tt.fr
19
Why Use Information Systems?
Automating: doing things faster
Organizational learning: doing things better
Supporting Strategy: doing things smarter
myriam.lewkowicz@u
tt.fr
20
Automating:
Doing Things Faster
Technology is used to automate a manual
process
Doing things faster, better, cheaper
Greater accuracy and consistency
Loan application example
Manual processing
Technology-supported process
Completely automated
myriam.lewkowicz@u
tt.fr
21
Organizational Learning:
Doing Things Better
Going beyond automation
Involves learning to improve the day-to-day activities within
the process
Looking at patterns and trends
Organizational Learning

Chapter Objectives
Understand characteristics of operational, managerial,
and executive information systems
Understand characteristics of transaction processing
systems, management information systems, and
executive information systems
Understand characteristics of information systems that
span organizational boundaries