Defining information systems

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  • It is important to distinguish between data and information. Data is a raw fact and can take the form of a number or statement such as a date or a measurement. It is necessary for businesses to put in place procedures to ensure data are recorded. For example, to ensure a call centre operator includes the postcode of every customer this can be written into their script and a validation check performed to check these data have been entered into the system.

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  • Information Systems are the software and hardware systems that support data‐ intensive applications. One of the most critical stages of an Information System development cycle is the System Design stage. During this stage the architecture, components, modules, interfaces and system data are defined and modeled in order to fulfill the respective requirements that the developed Information System should meet. For accomplishing this task a number...

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  • After studying this chapter, you should be able to: Explain the threats faced by modern information systems; define fraud and describe the process one follows to perpetuate a fraud; discuss who perpetrates fraud and why it occurs, including the pressures, opportunities, and rationalizations that are present in most frauds;...

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  • Chapter 1 - The information age in which you live: Changing the face of business. This chapter define management information systems (MIS) and describe the three important organizational resources within it - people, information, and information technology; describe how to use break-even analysis to assess the financial impact of information technology; describe how to use Porter's Five Forces Model to evaluate the relative attractiveness of and competitive pressures in an industry.

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  • Module A - Computer hardware and software. This chapter include objectives: Define information technology (IT) and its two basic categories: hardware and software; describe the categories of computers based on size; compare the roles of personal productivity, vertical market, and horizontal market software; describe the roles of operating system and utility software as components of system software; define the purpose of each of the six major categories of hardware.

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  • You will understand the context for systems analysis and design methods when you can: Define information system and name seven types of information system applications; identify different types of stakeholders who use or develop information systems, and give examples of each; define the unique role of systems analysts in the development of information systems; identify those skills needed to successfully function as an information systems analyst.

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  • Chapter 1 - Accounting information systems and firm value. After reading this chapter, you should be able to: Define an accounting information system and explain characteristics of useful information, distinguish among data, information and an information system, Distinguish the roles of accountants in providing information and explain certifications related to accounting information systems,...

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  • Chapter 15 - The systems development life cycle and project management: Addressing the challenges of building AIS systems. After reading this chapter, you should be able to: Describe each phase in the systems development life cycle, explain the core principles of information systems planning, define project management, and describe the positions of those who lead the project,...

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  • Chapter 1 - Role and purpose of accounting information systems. After studying this chapter you will be able to: Define “accounting information systems”, discuss why AIS is an important area of study for future accountants, compare and contrast AIS with other areas of accounting, explain the structure of most AIS, locate and evaluate information sources on AIS.

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  • Chapter 3 - Internal controls. After studying this chapter you will be able to: Define internal control and explain its importance in the accounting information system, explain the basic purposes of internal control and its relationship to risk, describe and give examples of various kinds of risk exposures.

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  • Chapter 4 - Management concepts. After studying this chapter you will be able to: Summarize and explain the importance of COSO's enterprise risk management - integrated framework; define business process management, including a generalized model of BPM; list and discuss some basic principles of business process management; explain expectancy theory; apply all three topics within the context of accounting information systems.

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  • Chapter 1 - Role and purpose of accounting information systems. When you've finished studying this chapter, and completing the activities at its conclusion, you should be able to: Define “accounting information systems”, discuss why AIS is an important area of study for future accountants, compare and contrast AIS with other areas of accounting, explain the structure of most AIS, locate and evaluate information sources on AIS.

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  • Chapter 3 - Internal controls. When you've finished studying this chapter, and completing the activities at its conclusion, you should be able to: Define internal control and explain its importance in the accounting information system, explain the basic purposes of internal control and its relationship to risk, describe and give examples of various kinds of risk exposures,...

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  • Chapter 4 - Management concepts. When you've finished studying this chapter, and completing the activities at its conclusion, you should be able to: Summarize and explain the importance of COSO's enterprise risk management - integrated framework; define business process management, including a generalized model of BPM; list and discuss some basic principles of business process management; explain expectancy theory; apply all three topics within the context of accounting information systems.

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  • Information Systems are the software and hardware systems that support dataintensive applications. One of the most critical stages of an Information System development cycle is the System Design stage. During this stage the architecture, components, modules, interfaces and system data are defined and modeled in order to fulfill the respective requirements that the developed Information System should meet.

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  • After studying chapter 4 you should be able to: Describe the basic IEEE 802.11 wireless security protections; define the vulnerabilities of open system authentication, WEP, and device authentication; describe the WPA and WPA2 personal security models; explain how enterprises can implement wireless security.

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  • After studying this chapter you should be able to: Define privilege audits, describe how usage audits can protect security, list the methodologies used for monitoring to detect security-related anomalies, describe the different monitoring tools.

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  • In this chapter you will learn: Know about marketing information systems, understand the scientific approach to marketing research, know how to define and solve marketing problems, know about getting secondary and primary data, understand the role of observing, questioning and using experimental methods in marketing research, understand the important new terms (shown in the margins).

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  • Chapter 2 - Major business initiatives: Gaining competitive advantage with IT . After completing this unit, you should be able to: Define supply chain management (SCM) systems and describe their strategic and competitive opportunities, define customer relationship management (CRM) systems and describe their strategic and competitive opportunities, explain the significance of enterprise resource planning (ERP) software as the integration of functional software systems.

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  • Chapter 3 - Databases and data warehouses: supporting the analytics-driven organization. The goal is for you to learn: List and describe the key characteristics of a relational database, define the five software components of a database management system, list and describe the key characteristics of a data warehouse, define the five major types of data-mining tools in a data warehouse environment.

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