tailieunhanh - Lecture Introduction to MIS - Chapter 12: Systems development

In this chapter, students will be able to understand: How are information systems built? What problems are encountered when you develop information systems? What are the strengths and weaknesses of development methodologies? How do you analyze systems and businesses? | Introduction to MIS Chapter 12 Systems Development Systems Development Operations Tactics Strategy Enterprise information system Decision support system Transaction processing Systems development life cycle End user development Prototyping Outline Challenges in Building Information Systems Systems Development Lifecycle (SDLC) Alternatives to SDLC Prototyping Teamwork Extreme Programming End-User Development Analyzing Systems Process Analysis Object-Oriented Design Cases: Government Agencies Appendix: Visual Basic Project Evaluation (given a discount factor) Get list of cost items from the user (Description, value, time-incurred, probability-factor, category . . .) Examine each item in the list: Compute the present value of the cost: PV = Cost / ( (1 + rate) ^ time) Multiply by the probability factor: EV = probability * PV If item is in a special category, Then add or subtract correction: category = Land Add 10% category = Overhead Subtract 5% category = Labor Add 15% End If Accumulate the total value End of list Return the Total value Individual Development: Pseudocode Management Functions Operations Databases Programs Programs Programs Functions Operations Operations Databases Databases Databases Databases Programs Programs Programs Programs Programs Programs Top-down and Bottom-up Identify Management Functions and Operations Entire Organization Design Systems Data Programs Standards! Integrate Write code Build DB Find a problem $ 1998 2001 2002 Runaway Projects Technical measures 2 - 5 times over budget 2 - 5 times behind schedule Missing technical objectives Design problems Duplication of efforts Incompatibilities User/designer conflicts Cafasso 1994 Success & Failure Reasons for Success User Involvement Executive management support Clear requirements Proper planning Realistic expectations Reasons for Failure Lack of user input Incomplete requirements Changing requirements and specifications Lack of executive support Lack of technical skills Existing System . | Introduction to MIS Chapter 12 Systems Development Systems Development Operations Tactics Strategy Enterprise information system Decision support system Transaction processing Systems development life cycle End user development Prototyping Outline Challenges in Building Information Systems Systems Development Lifecycle (SDLC) Alternatives to SDLC Prototyping Teamwork Extreme Programming End-User Development Analyzing Systems Process Analysis Object-Oriented Design Cases: Government Agencies Appendix: Visual Basic Project Evaluation (given a discount factor) Get list of cost items from the user (Description, value, time-incurred, probability-factor, category . . .) Examine each item in the list: Compute the present value of the cost: PV = Cost / ( (1 + rate) ^ time) Multiply by the probability factor: EV = probability * PV If item is in a special category, Then add or subtract correction: category = Land Add 10% category = Overhead Subtract 5% category = Labor Add 15% End If Accumulate

• PR - Truyền thông
• Introduction to MIS
• Management Information Systems
• Information systems
• Systems development
• Building information systems
• Systems development lifecycle
• Organizing the MIS resources
• MIS organization
• International comparisons
• Hệ thống thông tin quản lý
• Technology foundations
• Business trends
• Social interactions
• Social group legitimacy
• Information warfare
• Information technology foundations
• Operating systems
• Hardware components
• Network structure
• Global telecommunications
• Sharing data
• Internet security issues
• Data protection
• Access controls
• Data capture
• Mobile commerce
• Transaction processing
• Database management systems
• Relational databases
• Database applications
• Integration of Information
• Business integration
• Enterprise resource planning
• Decision support systems
• Data mining
• Geographical information systems
• Complex decisions
• Artificial intelligence
• Building expert systems
• Strategic analysis
• External agents
• E Commerce failures
• Electronic business
• Electronic commerce
• Web advertising
• Hệ thống thông tin
• Lecture Management Information Systems
• MIS impact on society
• Introduction to management information systems
• Business information technology
• One user’s information
• Business school
• Networks telecommunications
• Computer security
• Communication channels