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    CH01_OO.ppt CH01_OO.ppt Presentation Transcript

    • Systems Analysis and Design in a Changing World, Fifth Edition
    • Overview
      • Information systems are
        • Crucial to success
        • Constantly being developed
        • Impact productivity and profits
      • Keys to successful system development
        • Thorough systems analysis and design
        • Understanding what the business requires
      Systems Analysis and Design in a Changing World, 5th Edition
    • Overview (continued) ‏
      • Systems analysis – process of understanding in detail what a system should accomplish
      • Systems design – process of specifying in detail how components of an information system should be physically implemented
      • Systems analyst – uses analysis and design techniques to solve business problems using information technology
      Systems Analysis and Design in a Changing World, 5th Edition
    • Analyst’s Approach to Problem Solving Systems Analysis and Design in a Changing World, 5th Edition Verify benefits of solving problem outweigh the costs Research and understand the problem Define the requirements for solving the problem Develop a set of possible solutions (alternatives) ‏ Define the details of the chosen solution Monitor to ensure desired results Decide which solution is best and recommend Implement the solution
    • Systems That Solve Business Problems
      • System – a collection of interrelated components functioning together to achieve an outcome
      • Information systems – collection of interrelated components that collect, process, store, and provide as output the information needed to complete business tasks
      • Subsystem – part of a larger system
      • Functional decomposition – dividing a system into smaller subsystems and components
      Systems Analysis and Design in a Changing World, 5th Edition
    • Information Systems and Subsystems Figure 1-2 Systems Analysis and Design in a Changing World, 5th Edition
    • System Boundary vs. Automation Boundary Figure 1-4 Systems Analysis and Design in a Changing World, 5th Edition
    • Types of Information Systems ‏ Figure 1-5 Systems Analysis and Design in a Changing World, 5th Edition
    • Required Skills of the Systems Analyst Figure 1-6 Systems Analysis and Design in a Changing World, 5th Edition
    • Systems Analyst Related Careers
      • Typical job titles include:
        • Consultant – Business, Systems, Technical
        • Analyst – Business systems, Systems support
        • Developer – Web, systems
        • Architect – Web, System, Software
      Systems Analysis and Design in a Changing World, 5th Edition
    • The Analyst’s Role in Strategic Planning
      • Special projects affecting executives
        • Business process management – redesign and improvements to existing processes
      • Strategic planning process
      • Information systems strategic planning
        • Application architecture plan (business focus) ‏
        • Technology architecture plan (infrastructure focus) ‏‏
      Systems Analysis and Design in a Changing World, 5th Edition
    • Components of an Information Systems Strategic Plan Figure 1-7 Systems Analysis and Design in a Changing World, 5th Edition