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INF1505 Study Material + Assessment 1
- Institution
- University Of South Africa (Unisa)
This document includes study notes for chapter 1-3 and a version of the assessment 1 questions and answers( for free).
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Content preview
INF 1505 Study MaterialNB
The study notes are formulated according to the learning outcomes for each chapter provided
by UNISA, based on the book Principles of Business Information Systems by Ralph Stair, George
Reynolds, and Thomas Chesney.
A version of the questions and answers from Assessment 1 have been included for free.
At the end of each chapter there is important additional information for better understanding.
If you would like to purchase a copy of the textbook or have any questions please email:
learning.materials.docs@gmail.com
CHAPTER ONE
LEARNING OUTCOMES:
LO1 Describe some of the threats to security and privacy that information systems and the
Internet can pose.
LO2 Discuss the expanding role and benefits of information systems in business and industry.
LO3 Identify the major steps of the systems development process and state the goal of each
LO4 List the components of a computer-based information system.
LO5 Identify the basic types of business information systems and discuss who uses them, how
they are used, and what kinds of benefits they deliver.
LO6 Name the components of an information system and describe several system
characteristics.
LO7 Discuss why it is important to study and understand information systems.
LO8 Describe the characteristics used to evaluate the quality of data.
,CHAPTER TWO
LEARNING OUTCOMES:
LO1 Identify the value-adding processes in the supply chain and describe the role of information
systems within them.
LO2 Provide a clear definition of organizational structure and organizational change and discuss
how these affect the implementation of information systems.
LO3 Identify some of the strategies employed to lower costs or improve service.
LO4 Define the term competitive advantage and discuss how organizations are using
information systems to achieve such an advantage.
LO5 Discuss how organizations justify the need for information systems.
LO6 Define the types of roles, functions and careers available in information systems.
CHAPTER THREE
LEARNING OUTCOMES:
LO1 Describe how to select and organize computer hardware components to support
information system objectives and business needs.
LO2 Describe the power, speed and capacity of central processing and memory devices.
LO3 Describe the access methods, capacity and portability of secondary storage devices.
LO4 Discuss the speed, functionality and importance of input and output devices.
LO5 Identify popular classes of computer systems and discuss the role of each.
,Chapter 1
LO1 Describe some of the threats to security and privacy that
information systems and the Internet can pose.
Threats to security, privacy, and other:
Trading losses due to a typing mistake in entry of a trade
Criminals stealing carbon credits from a carbon credit market
Computers creating new opportunities for unethical behavior
->someone falsifying computerized research results
->use human resource information system to time employees’ layoffs and firings to
avoid paying pensions
Unethical investors placing false rumors/incorrect information about a company on the
internet to try influence its stock price to make money
Information theft
->Stealing credit card numbers
->Stealing other personal information
Viruses and spam
Job loss due to increased technology efficiency
Potential health problems from making repetitive motions such as typing
Protection:
Installing security and control measures
Using IS to cut vandalism (build a free computer center for the community to use)
Install firewalls (software and hardware) to protect a computer system or network from
outside attacks
Using identification numbers and passwords
Install web cameras and hire “citizen spotters” to monitor them
Implement ergonomics (study of designing and positioning of work place equipment) to
help avoid health related problems of using computer systems
, LO2 Discuss the expanding role and benefits of information
systems in business and industry.
In business
Roles and benefits:
Forecast revenues and business activity
Determine best sources and uses of funds
Manage cash and other financial resources
Analyze investments and perform audits
->To make sure the organization is financially sound and that all financial reports and
documents are accurate
Examples
Sales and marketing
Develop new goods and services (product analysis)
Select best location for production and distribution (place analysis)
Determine best advertising and sales approach (promotion analysis)
Set product prices to get highest total revenues (price analysis)
Manufacturing
Process customer orders
Develop production schedules
Control inventory levels
Monitor product quality
Help design products (CAD)
Manufacture items (CIM)
Human Resource Management
Screen applicants
Administer performance tests on employees
Monitor employee productivity
Legal Information Systems
Analyze product liability and warranties
Help develop important legal documents and reports
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