Topic 10 System Development - HI5019 Strategic Information...

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HI5019 Strategic Information Systems Managing the Systems Development Life Cycle 1
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1. Introduction to AIS – Chapters 1 & 2 2. Ethics, Fraud and Internal Controls – Chap. 3 3. Revenue Cycle – Chap 4 4. Purchases & Cash Disbursements – Chap 5 5. Payroll Cycle & Fixed Assets – Chap 6 6. Conversion Cycle – Chap 7 7. Financial Reporting – Chap. 8 8. REA Approach to Database Modelling – Chapters 9 & 10 9. ERP Systems – Chap. 11 10.System Development – Chap 13 11.Computer Controls and Audits – Chapters 15 & 16 Course Outline 2
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Prepare solutions to the following questions: Chapter 13 Review Questions: 1-10 Discussion Questions: 1, 5, 11 and 12 Text chapter and tutorial 3
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Be able to identify the key stages in the SDLC. Recognize how a firm’s business strategy will shape its information system. Understand the relationship between strategic systems planning and legacy systems. Understand what transpires during systems analysis. Understand the TELOS model for assessing project feasibility. Be familiar with cost-benefit analysis issues related to information systems projects. Understand the role of accountants in the SDLC. 4 Session Theme
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5 The Systems Development Life Cycle
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First step is to develop a systems strategy. Requires understanding organization’s strategic business needs. Developed from mission statement, competitive pressures and current and anticipated market conditions. Considers the information systems’ implications pertaining to legacy systems and user concerns. Produces a strategic plan and timetable for system implementation. Project initiation is the process of assessing systems proposals for consistency with the strategic systems plan. Includes evaluating feasibility and the cost-benefit of proposals. Consideration of alternative conceptual designs, selection of a design and determining whether the proposal will require in- house development, a commercial package, or both. 6 The Systems Development Life Cycle
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Some organization’s needs that can only be met through internal development. Requires analyzing user needs, designing processes and databases, creating user views, programming, testing and implementation. Many organizations use a commercial software package. Lower initial cost, shorter implementation time, better controls and rigorous vendor testing but not without risks. Procedures needed to ensure software adequacy and compatibility. Maintenance and support includes implementing the latest software, in-house modifications, and establishing a user support infrastructure. 7 The Systems Development Life Cycle
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Systems professionals actually build the system. Systems analysts, systems designers, and programmers. Gather and analyze facts to formulate a solution to solve problems.
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