tailieunhanh - Lecture Accounting information systems (13/e) – Chapter 21: AIS development strategies
After studying this chapter, you will know: Describe how organizations purchase application software, vendor services, and hardware; explain how information system departments develop custom software; explain how end users develop, use, and control computer-based information systems; explain why organizations outsource their information systems, and evaluate the benefits and risks of this strategy;. | AIS Development Strategies Chapter 21 21-1 Learning Objectives Describe how organizations purchase application software, vendor services, and hardware Explain how information system departments develop custom software Explain how end users develop, use, and control computer-based information systems Explain why organizations outsource their information systems, and evaluate the benefits and risks of this strategy Explain the principles and challenges of business process management Describe how prototypes are used to develop an AIS, and discuss the advantages and disadvantages of doing so Explain what computer-aided software engineering is and how it is used in systems development 21-2 How to Obtain an AIS Purchase Develop in-house Outsource to outside organization 21-3 Purchasing Select a vendor (from referrals, trade shows, etc.) Request for proposal (RFP) that meets needs Evaluate proposals Top vendors invited to give demonstrations on how their system will fit your needs Make a . | AIS Development Strategies Chapter 21 21-1 Learning Objectives Describe how organizations purchase application software, vendor services, and hardware Explain how information system departments develop custom software Explain how end users develop, use, and control computer-based information systems Explain why organizations outsource their information systems, and evaluate the benefits and risks of this strategy Explain the principles and challenges of business process management Describe how prototypes are used to develop an AIS, and discuss the advantages and disadvantages of doing so Explain what computer-aided software engineering is and how it is used in systems development 21-2 How to Obtain an AIS Purchase Develop in-house Outsource to outside organization 21-3 Purchasing Select a vendor (from referrals, trade shows, etc.) Request for proposal (RFP) that meets needs Evaluate proposals Top vendors invited to give demonstrations on how their system will fit your needs Make a final selection based upon your criteria 21-4 Develop Software In-House Advantages Provides a significant competitive advantage Risks Requires significant amounts of time Complexity of the system Poor requirements defined Insufficient planning Inadequate communication and cooperation Lack of qualified staff Poor top management support 21-5 End-User Computing Advantages Disadvantages Allows for end-users to create, control, and implement simple systems More likely to meet user needs Saves time Frees up system resources Easy to use and understand Lack of testing of application and possible calculation errors Inefficient systems Poorly controlled Poorly documented System incompatibilities Duplication of data Increase costs in later years with upgrades 21-6 Outsourcing Advantages Disadvantage Allows companies to concentrate on core competencies Asset utilization Access to greater expertise and better technology Lower costs by standardizing user applications and splitting development and .
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