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Chap01-edit.ppt
1. Chapter 1 Foundations
of Information Systems
in Business
James A. O'Brien, and George Marakas.
Management Information Systems with MISource
2007, 8th ed. Boston, MA: McGraw-Hill, Inc.,
2007. ISBN: 13 9780073323091
2. Chapter 1 Foundations of Information Systems in Business
2
Foundation Concepts
Why study information systems and information
technology?
Vital component of successful businesses
Helps businesses expand and compete
Improves efficiency and effectiveness of
business processes
Facilitates managerial decision making and
workgroup collaboration
3. Chapter 1 Foundations of Information Systems in Business
3
What is a System?
A set of interrelated components
With a clearly defined boundary
Working together
To achieve a common set of objectives
4. Chapter 1 Foundations of Information Systems in Business
4
What is an Information System?
An organized combination of…
People
Hardware and software
Communication networks
Data resources
Policies and procedures
This system…
Stores, retrieves, transforms, and
disseminates information in an organization
5. Chapter 1 Foundations of Information Systems in Business
5
Information Technologies
Information Systems
All the components and resources necessary
to deliver information and functions to the
organization
Could be paper based
Information Technologies
Hardware, software, networking, data
management
Our focus will be on computer-based information
systems (CBIS)
6. Chapter 1 Foundations of Information Systems in Business
6
What Should Business
Professionals Know?
7. Chapter 1 Foundations of Information Systems in Business
7
Fundamental Roles of IS in
Business
8. Chapter 1 Foundations of Information Systems in Business
8
Trends in Information Systems
9. Chapter 1 Foundations of Information Systems in Business
9
What is E-Business?
Using Internet technologies to empower…
Business processes
Electronic commerce
Collaboration within a company
Collaboration with customers, suppliers, and
other business stakeholders
In essence, an online exchange of value
10. Chapter 1 Foundations of Information Systems in Business
10
How E-Business is Being Used
11. Chapter 1 Foundations of Information Systems in Business
11
E-Business Use
Reengineering
Internal business processes
Enterprise collaboration systems
Support communications, coordination and
coordination among teams and work groups
Electronic commerce
Buying, selling, marketing, and servicing of
products and services over networks
12. Chapter 1 Foundations of Information Systems in Business
12
Types of Information Systems
Operations Support Systems
Efficiently process business transactions
Control industrial processes
Support communication and collaboration
Update corporate databases
Management Support Systems
Provide information as reports and displays
Give direct computer support to managers
during decision-making
13. Chapter 1 Foundations of Information Systems in Business
13
Purposes of Information Systems
14. Chapter 1 Foundations of Information Systems in Business
14
Operations Support Systems
What do they do?
Efficiently process business transactions
Control industrial processes
Support communications and collaboration
Update corporate databases
15. Chapter 1 Foundations of Information Systems in Business
15
Types of OSS
Transaction Processing Systems
Record and process business transactions
Example: sales processing, inventory systems,
accounting systems
Process Control Systems
Monitor and control physical processes
Example: using sensors to monitor chemical
processes in a petroleum refinery
Enterprise Collaboration Systems
Enhance team and workgroup communication
Example: email, video conferencing
16. Chapter 1 Foundations of Information Systems in Business
16
Two Ways to Process Transactions
Batch Processing
Accumulate transactions over time and
process periodically
Example: a bank processes all checks
received in a batch at night
Online Processing
Process transactions immediately
Example: a bank processes an ATM
withdrawal immediately
17. Chapter 1 Foundations of Information Systems in Business
17
Management Support Systems
What do they do?
Provide information and support for effective
decision making by managers
Management information systems
Decision support systems
Executive information systems
18. Chapter 1 Foundations of Information Systems in Business
18
Types of Management Support Systems
Management Information Systems (MIS)
Reports and displays
Example: daily sales analysis reports
Decision Support Systems (DSS)
Interactive and ad hoc support
Example: a what-if analysis to determine where
to spend advertising dollars
Executive Information Systems (EIS)
Critical information for executives and
managers
Example: easy access to actions of competitors
19. Chapter 1 Foundations of Information Systems in Business
19
Other Information Systems
Expert Systems - provide expert advice
Example: credit application advisor
Knowledge Management Systems - support creation,
organization, and dissemination of business knowledge
throughout company
Example: intranet access to best business practices
Strategic Information Systems - help get a strategic
advantage over customer
Example: shipment tracking, e-commerce Web
systems
Functional Business Systems - focus on operational and
managerial applications of basic business functions
Example: accounting, finance, or marketing
20. Chapter 1 Foundations of Information Systems in Business
20
IT Challenges and Opportunities
21. Chapter 1 Foundations of Information Systems in Business
21
Measuring IT Success
Efficiency
Minimize cost, time, and use of information
resources
Effectiveness
Support business strategies
Enable business processes
Enhance organizational structure and culture
Increase customer and business value
23. Chapter 1 Foundations of Information Systems in Business
23
Challenges and Ethics of IT
Application of IT
Customer relationship management
Human resources management
Business intelligence systems
Potential Harm
Infringements on privacy
Inaccurate information
Collusion
Potential Risks
Consumer boycotts
Work stoppages
Government intervention
Possible Responses
Codes of ethics
Incentives
Certification
24. Chapter 1 Foundations of Information Systems in Business
24
Ethical Responsibilities
What uses of IT might be considered improper
or harmful to other individuals or society?
What is the proper business use of the Internet
or a company’s IT resources?
How can you protect yourself from computer
crime?
25. Chapter 1 Foundations of Information Systems in Business
25
IT Careers
Economic downturns have affected all job
sectors, including IT
Rising labor costs are pushing jobs to India, the
Middle East, and Asia-Pacific countries
However, IT employment opportunities are
strong, with new jobs emerging daily
Shortages of IT personnel are frequent
The long-term job outlook is positive and
exciting
Figure
27. Chapter 1 Foundations of Information Systems in Business
27
IT Careers
Job increases will be driven by…
Rapid growth in computer system design and
related services
The need to backfill positions
Information sharing and client/server
environments
The need for those with problem-solving skills
Falling hardware and software prices, which
will fuel expanded computerization of
operations
28. Chapter 1 Foundations of Information Systems in Business
28
The IS Function
The IS function is…
A major functional area of business
An important contributor to operational efficiency,
employee productivity, morale, customer service
and satisfaction
A major source of information and support for
decision making
A vital ingredient in developing competitive
products and services in the global marketplace
A dynamic and challenging career opportunity
A key component of today’s networked business
29. Chapter 1 Foundations of Information Systems in Business
29
System Concepts: A Foundation
System concepts help us understand…
Technology: hardware, software, data
management, telecommunications networks
Applications: to support inter-connected
information systems
Development: developing ways to use
information technology includes designing the
basic components of information systems
Management: emphasizes the quality,
strategic business value, and security of an
organization’s information systems
30. Chapter 1 Foundations of Information Systems in Business
30
What is a System?
A system is…
A set of interrelated components
With a clearly defined boundary
Working together
To achieve a common set of objectives
By accepting inputs and producing outputs
In an organized transformation process
31. Chapter 1 Foundations of Information Systems in Business
31
Basic Functions of a System
Input
Capturing and assembling elements that enter
the system to be processed
Processing
Transformation process that converts input
into output
Output
Transferring transformed elements to their
ultimate destination
32. Chapter 1 Foundations of Information Systems in Business
32
Cybernetic System
All systems have input, processing, and output
A cybernetic system, a self-monitoring, self-
regulating system, adds feedback and control:
Feedback is data about the performance of a
system
Control involves monitoring and evaluating
feedback to determine whether a system is moving
toward the achievement of its goal
34. Chapter 1 Foundations of Information Systems in Business
34
Other System Characteristics
If a system is one of the components of a larger
system, it is a subsystem
The larger system is an environment
Several systems may share the same
environment
Some may be connected via a shared
boundary, or interface
Types of systems…
Open
Adaptive
36. Chapter 1 Foundations of Information Systems in Business
36
Information System Resources
People Resources
Specialists
End users
Hardware Resources
Machines
Media
Software Resources
Programs
Procedures
Data Resources
Product descriptions, customer records, employee files,
inventory databases
Network Resources
Communications media, communications processors, network
access and control software
Information Resources
Management reports and business documents using text and
graphics displays, audio responses, and paper forms
37. Chapter 1 Foundations of Information Systems in Business
37
Data Versus Information
Data are raw facts about physical phenomena or
business transactions
Information is data that has been converted into
meaningful and useful context for end users
Example:
Sales data is names, quantities, and dollar
amounts
Sales information is amount of sales by
product type, sales territory, or salesperson
38. Chapter 1 Foundations of Information Systems in Business
38
IS Activities
Input of data resources
Data entry activities
Processing of data into information
Calculations, comparisons, sorting, and so on
Output of information products
Messages, reports, forms, graphic images
Storage of data resources
Data elements and databases
Control of system performance
Monitoring and evaluating feedback
39. Chapter 1 Foundations of Information Systems in Business
39
Recognizing IS
Business professionals should be able to look at
an information system and identify…
The people, hardware, software, data, and
network resources they use
The type of information products they produce
The way they perform input, processing,
output, storage, and control activities