Decision Support Systems
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Course Introduction
Decision Support Systems explores the concepts, methodologies, and technologies used to support effective decision-making within organizations. The course covers the design, development, and implementation of computer-based information systems that assist managers in making data-driven decisions. Students will learn about data analysis tools, model-driven support, knowledge-based systems, and user interface considerations. Topics include decision-making processes, components of decision support systems, and the integration of artificial intelligence and business analytics. Emphasis is placed on practical applications and case studies to understand how decision support systems are used to solve unstructured and semi-structured business problems.
Recommended Textbook
MIS 8th Edition by Hossein Bidgoli
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Chapter 1: Information Systems: An Overview
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Sample Questions
Q1) The data component of an information system is:
A) the input to the information system.
B) a series of integrated files containing relevant facts.
C) a set of facts that have been analyzed by the process component.
D) the output of the information system.
Answer: A
Q2) Explain the main difference between an intranet and the Internet.
Answer: Answers will vary.The main difference between an intranet and the Internet is that an intranet is private and the Internet is public.An intranet is a network within an organization that uses Internet protocols and technologies for collecting, storing, and disseminating useful information that supports business activities such as sales, customer service, human resources, and marketing.
Q3) Rivalry among existing competitors is high when many competitors occupy the same marketplace position.
A)True
B)False
Answer: True
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Chapter 2: Computers: The Machines Behind Computing
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Q1) The supervisor program in an operating system (OS) is also known as the _____.
A) kernel
B) metadata
C) applet
D) cache
Answer: A
Q2) Computer designers have concentrated on technology using gallium arsenide instead of silicon because silicon:
A) cannot be used for the mass production of electronic devices.
B) cannot emit light and has speed limitations.
C) is soft and fragile.
D) is expensive.
Answer: B
Q3) Discuss single processor and multiprocessor computers.
Answer: Answers will vary.Some computers have a single processor; other computers, called multiprocessors, contain multiple processors.Multiprocessing is the use of two or more CPUs in a single computer system.Generally, a multiprocessor computer performs better than a single-processor computer in the same way that a team would perform better than an individual on a large, time-consuming project.
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Chapter 3: Database Systems, Data Warehouses and Data
Marts
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Q1) In a relational database model, the rows are called _____.
A) tuples
B) attributes
C) branches
D) roots
Answer: A
Q2) Disks are sequential access devices, whereas tapes are random access devices.
A)True
B)False
Answer: False
Q3) In a relational database model, a(n) _____ pares down a table by eliminating columns according to certain criteria.
A) project operation
B) join operation
C) find operation
D) insert operation
Answer: A
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Chapter 4: Personal, Legal, Ethical and Organizational
Issues of Information Systems
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Sample Questions
Q1) A potential benefit of telecommuting is that it _____.
A) regulates work routine
B) reduces employee turnover
C) separates work and home life
D) increases interaction with coworkers
Q2) _____is computing that promotes a sustainable environment and consumes the least amount of energy.
A) Digital computing
B) Soft computing
C) Green computing
D) Cyber computing
Q3) Ergonomics experts believe that using better-designed furniture can solve many of the health problems related to computer equipment.
A)True
B)False
Q4) To minimize the invasion of privacy, users and organizations should:
A) provide wrong data to unauthorized users.
B) use verification procedures to ensure data accuracy.
C) keep collected information even after the stated purpose is over.
D) provide access to one's personal information to all interested parties.
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Chapter 5: Protecting Information Resources
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Sample Questions
Q1) Briefly explain how packet-filtering firewalls work.
Q2) _____ uses a public key known to everyone and a private key known only to the recipient.
A) Symmetric encryption
B) Asymmetric encryption
C) Remote key encryption
D) Secret key encryption
Q3) Briefly discuss how a worm can disrupt a computer or a network.
Q4) Application-filtering firewalls are less expensive than packet-filtering firewalls.
A)True
B)False
Q5) Which of the following intentional computer and network threats is a type of Trojan program used to release a virus, worm, or other destructive code?
A) A logic bomb
B) Dumpster diving
C) A blended threat
D) Shoulder surfing
Q6) Briefly discuss the process of data encryption.
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Chapter 6: Data Communication
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Sample Questions
Q1) In the early days of computer technology, a(n) _____system was justified because data-processing personnel were in short supply, hardware and software were expensive, and only large organizations could afford computers.
A) centralized processing
B) decentralized processing
C) distributed processing
D) interconnected processing
Q2) Describe the responsibilities of the Transport layer of the Open Systems Interconnection (OSI) model.
Q3) Any packet-switching network can handle multimedia data.
A)True
B)False
Q4) Data communication systems increase inventory costs.
A)True
B)False
Q5) In the context of mobile networking, 3G networks have decreased the quality of Internet telephony or Voice over Internet Protocol (VoIP).
A)True
B)False
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Chapter 7: The Internet, Intranets, and Extranets
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Q1) Combinations of spaces and special characters can be used in domain names of uniform resource locators (URLs).
A)True
B)False
Q2) Syndication feeds are one way of announcing the availability of a _____.
A) gigapop
B) backlink
C) podcast
D) mirror disk
Q3) Briefly describe Hypertext Markup Language (HTML).
Q4) Voice over Internet Protocol (VoIP) is used to route traffic starting and ending at conventional public switched telephone network phones.
A)True
B)False
Q5) Describe each part of a uniform resource locator (URL) using an example.
Q6) Briefly discuss the uses of corporate wikis with examples.
Q7) In the context of Web applications, briefly explain software distribution.
Q8) Briefly describe social networking, and give examples of social networking sites.
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Chapter 8: E-Commerce
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Q1) _____ is a primary activity in Michael Porter's value chain.
A) Service
B) Procurement
C) Technological development
D) Human resource management
Q2) Describe the information sharing and ordering activities involved in conducting business-to-consumer (B2C) e-commerce.
Q3) A _____ concentrates on a specific function or business process and automates this function or process for different industries.
A) vertical market
B) horizontal market
C) baseline market
D) sideline market
Q4) Describe the merchant model of e-commerce.
Q5) List four disadvantages of e-commerce.
Q6) In the context of Web marketing, describe spot leasing.
Q7) Describe micropayments.
Q8) Describe hyper-social organizations.
Q9) Provide examples of how e-commerce can enhance a value chain.
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Chapter 9: Global Information Systems
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Sample Questions
Q1) How does e-business build on the advantages and structures of traditional business?
Q2) _____ of a global information system (GIS) involves broad and long-term goals.
A) Tactical support
B) Dynamic support
C) Operational support
D) Strategic support
Q3) In an organization with a global structure, to achieve organizational efficiency, duplicate information systems must be eliminated.
A)True
B)False
Q4) Designing and implementing a global database is a technical challenge, mainly because of the _____.
A) variations in the business needs of an organization
B) different character sets used for the names of people and places
C) complications involved in providing complete autonomy to a company's subsidiaries
D) need to transfer data across cultural and geographic boundaries
Q5) List the two basic components of a global information system (GIS).
Q6) List the four types of organizations that do business across national borders.
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Chapter 10: Building Successful Information Systems
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Q1) In the context of prototyping during the design phase of the systems development life cycle (SDLC), a _____ shows users how a particular task that was not technically feasible or appears to be unfeasible can be done.
A) proof-of-concept prototype
B) computer-aided prototype
C) requirements-based prototype
D) phased-in-phased-out prototype
Q2) Explain why intangible benefits of an information system are difficult to quantify.
Q3) Which of the following statements is true of pair programming?
A) Two programmers work on different codes at one workstation.
B) Two programmers work on the same code at one workstation.
C) Two programmers perform same activities at different workstations.
D) Two programmers perform different activities at different workstations.
Q4) Describe the advantages of prototypes.
Q5) Explain how the models created during the analysis phase contribute to the design phase of the systems development life cycle (SDLC).
Q6) Discuss the disadvantages of outsourcing.
Q7) Discuss the four steps involved in prototyping.
Page 12
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Chapter 11: Enterprise Systems
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Q1) _____ is an executive position created for overseeing knowledge management within an organization.
A) Chief knowledge officer
B) Lead knowledge mobilizer
C) Lead knowledge worker
D) Chief knowledge programmer
Q2) Which of the following components of an enterprise resource planning (ERP) system provides information on assessing job candidates?
A) The human resources
B) The supply chain
C) The unified database
D) The customer relationship management
Q3) _____ consists of the processes a company uses to track and organize its contacts with consumers.
A) Customer relationship management
B) Production management
C) The partnership model
D) The strategic management model
Q4) Discuss the drawbacks of an enterprise resource planning (ERP) system.
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Chapter 12: Management Support Systems
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Sample Questions
Q1) Identify a true statement about group support systems (GSSs).
A) Increasing collaboration improves the effectiveness of decision makers.
B) Textual data is transmitted faster than verbal data.
C) Arranging many GSS sessions is difficult because of low cost efficiency.
D) GSS sessions transmit data within a secure network.
Q2) In _____, a geographic information system (GIS) is used to track changes in ridership on mass-transit systems.
A) marketing operations
B) education planning
C) real estate businesses
D) urban planning
Q3) List the roles involved in designing, implementing, and using a decision support system (DSS).
Q4) Managers use executive information systems (EISs) to:
A) communicate via videoconferences.
B) work in groups.
C) track inventories.
D) spot trends.
Q5) Describe the tasks and data management operations performed by a geographic information system (GIS).
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Chapter 13: Intelligent Information Systems
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Q1) In the backward chaining technique, used by the inference engine component of an expert system, the expert system starts with the goal, which is the _____ part, and backtracks to find the right solution.
A) if
B) then
C) else
D) what-is
Q2) Fuzzy logic is used in refrigerators that set defrosting and cooling times based on usage patterns.
A)True
B)False
Q3) A _____ provides an easier way for people to communicate with a computer than a graphical user interface (GUI).
A) data mining system
B) transaction-processing system
C) natural-language processing system
D) data abstraction system
Q4) Discuss an application of intelligent agents that is in use today.
Q5) Describe the advantages offered by robots over humans in the workplace.
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Chapter 14: Emerging Trends, Technologies, and Applications
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Q1) Discuss the use of biometrics in passports and secure government ID cards.
Q2) _____ clouds are more suitable for organizations that need scalability, do collaborative projects, and offer standard applications over the Web.
A) Private
B) Hybrid
C) Community
D) Public
Q3) In a virtual reality (VR) environment, enabling users to act on objects, such as using a data glove to pick up and move objects, is known as _____.
A) interaction
B) simulation
C) telepresence
D) immersion
Q4) A radio frequency identification (RFID) tag provides a generic identification for a credit or debit card carrying the tag.
A)True
B)False
Q5) Discuss the drawbacks of grid computing.
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