Systems Development - Information Systems Systems...

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Information Systems Systems Development Chapter 6 Chapter Overview Organizational Change Systems Development Life Cycle (SDLC) Prototyping Selfsourcing Outsourcing Organizational Change Automation: Speeding up performance Rationalization of procedures: Streamlining of operating procedures Business process reengineering: Radical design of business processes Paradigm shift: Radical reconceptualization Organizational Change Why Systems Fail 20% of systems succeed, 80% fail. Reasons systems fail: Unclear or missing requirements Skipping SDLC phases Failure to manage project scope (scope creep and feature creep) Failure to manage project plan Changing technology Inadequate testing and/or poor implementation Not planning for the future Information Systems Planning Systems Development Life Cycle (SDLC) SDLC - the development method used by most organizations today for large, complex systems Waterfall Approach - a sequence of steps in the SDLC with cycles returned to previous stops Systems Analysts - IS professionals who specialize in analyzing and designing information systems Programmers - IS professionals who modify existing computer programs or write new computer programs to satisfy user requirements Technical Specialists - experts in a certain type of technology, such as databases or telecommunications SDLC SDLC Plan Define the system to be developed. Set the project scope.
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