In this chapter, the learning objectives are: Understand the concept of a system and how it relates to information systems; explain why knowledge of information systems is important for business professionals and identify five areas of information systems knowledge they need; give examples to illustrate how business applications of information systems can support a firm’s business processes, managerial decision making, and strategies for competitive advantage.
Trang 1Foundations of Information Systems
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1 Explain why knowledge of information systems
is important for business professionals and
identify five areas of information systems
knowledge they need.
2 Give examples to illustrate how the business
applications of information systems can
support a firm’s business processes,
managerial decision making, and strategies
for competitive advantage.
Learning Objectives
Trang 3Learning Objectives
of information systems from your
experiences with business organizations
in the real world
business manager might face in
managing the successful and ethical
development and use of information
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Learning Objectives
real world information systems
Illustrate that in an information system, people use hardware, software, data
and networks as resources to perform
input, processing, output, storage, and
control activities that transform data
resources into information products
Trang 5Why Study Information Systems?
of businesses improve the efficiency and effectiveness of their business processes, managerial decision making, and
workgroup collaboration, thus
strengthening their competitive positions
in a rapidly changing marketplace
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Why Study Information Systems
necessary ingredient for business
success in today’s dynamic global
environment
expanding role in business
Trang 7Case #1: Athens Olympics Network
unique project is that the athletes aren’t going to stop running just because the
server does
• Major Components:
• Games Management System (GMS)
• Information Diffusion System (IDS)
Trang 8• Collected and distributed event results and
rankings to press agencies and certain websites
• Live feed for broadcasters commenting on
events
• Results, rankings, statistics and biographies
available to commentators 3 seconds after the athletes crossed the line
Trang 9Case #1: Athens Olympics Network
Goals & Constraints:
Trang 10• Constructed the network in such a way that
service could be provided even if one of the routers was damaged.
• Stored data in two physically distant data
centers (in different earthquake zones).
that every stupid thing that can happen
was planned for.”
Trang 11Case #1: Athens Olympics Network
1 Could the 2004 Athens Olympics have been a
success without all of the networks and
backup technologies?
2 How would your 2004 Olympics experience
changed without the GMS and IDS systems?
3 The 2004 Olympics is a global business Can
a business today succeed without information technology? Why or why not?
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Case #1: Athens Olympics Network
“crazy scenarios of what might happen
in every area: a network problem, staff stopped in a traffic jam, a security
attack… everything that might happen,” was the reason for so much testing
Can you think of other businesses that would require “crazy scenario” testing? Explain
Trang 13Case #1: Athens Olympics Network
systems in place limited to one-time systems like those at the Olympics or should they exist in other business
environments? Explain your position and provide specific examples
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What is an Information System?
Any organized combination of people,
hardware, software, communications
networks, and data resources that stores, retrieves, transforms, and disseminates
information in an organization
Trang 15Information Systems vs
Information Technology
Information Systems vs
Information Technology
• Information Systems (IS) – all
components and resources necessary to deliver information and information
processing functions to the organization
• Information Technology (IT) – various
hardware components necessary for the system to operate
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Types of Information Technologies
• Computer Hardware Technologies
including microcomputers, midsize servers, and large
mainframe systems, and the input, output, and storage devices that support them
• Computer Software Technologies
including operating system software, Web browsers,
software productivity suites, and software for business
applications like customer relationship management and supply chain management
Trang 17Types of Information Technologies
• Telecommunications Network
Technologies
including the telecommunications media, processors,
and software needed to provide wire-based and wireless access and support for the Internet and private Internet- based networks
• Data Resource Management
Technologies
including database management system software for
the development, access, and maintenance of the
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Conceptual Framework of IS Knowledge
Trang 19Roles of IS in Business
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Trends in Information Systems
Trang 21What is E-Business?
Definition:
and empower business processes,
electronic commerce, and enterprise
collaboration within a company and with its customers, suppliers, and other
business stakeholders
Trang 23Enterprise Collaboration Systems
Definition:
support communication, coordination, and collaboration among the members of
networked teams and workgroups
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What is E-Commerce?
Definition:
The buying and selling, and marketing
and servicing of products, services, and information over a variety of computer
networks
Trang 25Types of Information Systems
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Operation Support Systems
Definition:
generated by and used in business
operations
transactions, control industrial processes, support enterprise communications and
collaboration, and update corporate
databases
Trang 27Examples of Operations Support Systems
process data resulting from business
transactions, update operational databases, and produce business documents.
control industrial processes.
team, workgroup, and enterprise
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A Transaction Processing System Example
Trang 29Management Support Systems
Definition:
providing information and support for
effective decision making by managers
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Management Support Systems
provide information in the form of pre-specified reports and displays to support business
decision making.
interactive ad hoc support for the decision
making processes of managers and other
business professionals.
critical information from MIS, DSS, and other
sources tailored to the information needs of
executives.
Trang 31A Decision Support System Example
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Operational & Managerial IS
• Expert Systems – provide expert advice
for operational chores or managerial
decisions
• Knowledge Management Systems –
support the creation, organization, and
dissemination of business knowledge to employees and managers
Trang 33IS Classifications by Scope
business functions
processes that provide a firm with strategic
products, services, and capabilities for
competitive advantage
integrated combinations of information systems
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Management Challenges & Opportunities
Trang 35• Support an organization’s business strategies
• Enable its business processes
• Enhance its organizational structure and culture
• Increase the customer business value of the
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Developing IS Solutions
Trang 37The Systems Development Lifecycle
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Ethical Challenges of IT
Trang 39IT Career Trends
• Rising labor costs have resulting in large-scale
movement to outsource programming functions to India, the Middle East and Asia-Pacific countries.
• More new and exciting jobs emerge each day as
organizations continue to expand their wide-scale use of IT.
• Frequent shortages of qualified information systems
personnel.
• Constantly changing job requirements due to dynamic
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The IS Function represents…
equally as important to business success
as the functions of accounting, finance,
operations management, marketing, and human resource management
efficiency, employee productivity and
morale, and customer service and
satisfaction
Trang 41The IS Function represents…
needed to promote effective decision
making by managers and business
professionals
competitive products and services that
give an organization a strategic
advantage in global marketplace
Trang 421 - 42
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The IS Function represents…
career opportunity for millions of men and women
infrastructure, and capabilities of today’s networked business enterprise
Trang 43Case #2: Connecting the Mobile Workforce
Goals:
• Trained on the latest technology and
procedures
• Plugged into the corporate infrastructure
• Informed about schedules, weather events, and other facts that affect their jobs
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Case #2: Connecting the Mobile Workforce
Productivity and Efficiency Improvements:
• Pilots can access updated data electronically.
• Pilots can work in a variety of locations including
airplanes, airports, hotels, and other remote
locations.
• Pilots appreciate the convenience of not having
to carry heavy manuals and documentation to
multiple locations.
• Pilots can take their required training on their
laptops during downtime in any airport.
Trang 45Case #2: Connecting the Mobile Workforce
identified in the case similar to those
being experienced by other businesses
in today’s global economy? Explain and provide some examples
benefits, beyond those identified by
Lufthansa, might a mobile workforce
enjoy as a result of deploying mobile
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Case #2: Connecting the Mobile Workforce
with their decision to deploy notebook
computers to their pilots What steps did they take to manage that risk and what
others might be needed in today’s
business environment? Provide some
examples
your productivity and efficiency?
Provide some examples
Trang 47Case #2: Connecting the Mobile Workforce
performance, and management might
arise with the use of mobile computing
devices in the field and in the cockpit? What preventive actions or solutions to these potential problem areas could you suggest?
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What is a System?
Definition:
A group of interrelated components, with
a clearly defined boundary, working
together toward a common goal by
accepting inputs and producing outputs in
an organized transformation process
Trang 49System Components
• Input – capturing and assembling
elements that enter the system to be
processed
• Processing – transformation steps that
convert input into output
• Output – transferring elements that have
been produced by a transformation
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Cybernetic Systems
Definition:
a self-monitoring, self-regulating system
• Feedback – data about the performance
of a system
• Control – monitoring and evaluating
feedback to determine whether a system
is moving toward the achievement of its
goal
Trang 51Example of a Cybernetic System
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A Business System
Trang 53IS Resources & Activities
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Information System Resources
• People – end users and IS specialists
• Hardware – physical devices and
materials used in information processing including computer systems, peripherals, and media
• Software – sets of information processing
instructions including system software,
application software and procedures
Trang 55Information Systems Resources (con’t)
physical phenomena or business
transactions
• Network – communications media and
network infrastructure
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Data vs Information
about physical phenomena or business
transactions
• Information – data that have been
converted into a meaningful and useful
context for specific end users
Trang 57Network Resources
Network Resources
• Communications Media – examples
include twisted-pair wire, coaxial and
fiber-optic cables, microwave, cellular,
and satellite wireless technologies
• Network Infrastructure – examples include
communications processors such as
modems and internetwork processors,
and communications control software
such as network operating systems and
Trang 581 - 58
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Information Systems Activities
Trang 59Recognizing Information Systems
Fundamental Components of IS
network resources used
control activities performed
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Case #3: Failure to Success with IT
Aviall on the Ropes:
• A failed enterprise resource planning system
that had been designed to automate and
integrate the company’s order processing,
inventory control, financial accounting, and
human resources business systems
• Couldn’t properly order or ship items to
customers
• Quarterly sales dropping
• Airline industry shrinking
Trang 61Case #3: Failure to Success with IT
Goals:
full-scale logistics business that hundreds
of aviation parts manufacturers and
airlines could depend on for ordering,
inventory control, and demand forecasting
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Case #3: Failure to Success with IT
Challenges:
software systems from different software providers
who receive various types of discounts
Trang 63Case #3: Failure to Success with IT
Benefits of Aviall.com:
• Customer order obtained via web costs only 39
cents compared with $9 for an order taken via telephone
• Sales force freed from routine order taking can
devote more time to developing relationships
with customers
• Customers have the ability to transfer orders
from an Excel spreadsheet directly to website
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Case #3: Failure to Success with IT
Benefits of Aviall.com (con’t):
• Customers can receive pricing and availability
information on parts within 5 seconds
• Helps build relationships with suppliers by
providing them with customer ordering data that enables them to better match production with
demand
Trang 65Case #3: Aviall Inc.
1 Why do you think that Aviall failed in their
implementation of an enterprise resource
planning system? What could they have done differently?
2 How has information technology brought new
business success to Aviall? How did IT
change Aviall’s business model?
3 How could other companies use Aviall’s
approach to the use of IT to improve their