Chapter 2 Notes

Chapter 2 Notes - Chapter 2 Understanding Organizational...

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1 Chapter 2 Understanding Organizational Style and Its Impact on Information Systems Systems Analysis and Design Seventh Edition 2 Major Topics ± Organizational environment ± Nature of systems ± Context-level data flow diagram ± Entity-relationship diagram ± Use Case Modeling ± Levels of management ± Organizational culture
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2 3 Major Topics ± Organizations as systems ± Depicting systems graphically ± Data flow diagram ± Entity-relationship model ± Use case modeling ± Levels of management ± Organizational culture 4 Organizations ± Organizations ± interrelated and interdependent subsystems. ± System and subsystem boundaries and environments impact on information system analysis and design. ± Three Main Forces Interacting to Shape Organizations ± Levels of management ± Design of organizations ± Organizational cultures
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3 5 Interrelatedness and Independence of Systems ± All systems and subsystems are interrelated and interdependent ± All systems process inputs from their environments ± All systems are contained by boundaries separating them from their environments ± System feedback for planning and control ± An ideal system self-corrects or self-regulates itself 6 Organizations As Systems ± Conceptualized as systems designed to accomplish predetermined goals and objectives ± Composed of smaller, interrelated systems serving specialized functions ± Specialized functions are reintegrated to form an effective organizational whole
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4 7 Figure 2.1 System outputs serve as feedback that compares performance with goals 8 Openness and Closedness ± Open ± Free flow of information ± Output from one system becomes input to another ± Closed ± Restricted access to information ± Limited by numerous rules ± Information only on a “need to know” basis
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5 9 Organizational Environments ± Community ± Geographic location ± Demographic profile (education, income) ± Economic ± Market factors ± Competition ± Political ± State and local government 10 Virtual Organizations and Virtual Teams ± A virtual organization has parts of the organization in different physical locations ± Computer networks and communications technology are used to bring virtual teams together to work on projects. ± Benefits: ± Possibility of reducing costs of physical facilities ± More rapid response to customer needs ± Helping virtual employees to fulfill their familial obligations to children or aging parents
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6 11 Taking a Systems Perspective ± Allows system analyst to understand businesses before they begin their tasks ± Members of subsystems realize that they are interrelated with
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Chapter 2 Notes - Chapter 2 Understanding Organizational...

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