Systems Analysis and Design

1
Systems Analysis and Design Spring 2002

• Background
• System Information system
• SDLC
• Modeling
• Business Model
• Group

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Background

• SAD based on systems approach
• SAD an approach to systems building
• SAD has history of development
• SAD has different methodologies
• SAD approaches traditional, prototype,
  object-oriented

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System

• What is a system set of interacting components
  to achieve a common goal
• Input, processing, output
• Examples organic, non-organic, other
• Systems aspects
• Boundary, components, environment, IPO,
  constraints, limits
• System Types basic, feedback, learning

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System types

• Basic no adaptations to output
• Feedback output can vary with feedback
• Learning output can change with adaptation.
  Changes to responses

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Information system

• A system of People, procedures, hardware, and
  software

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SDLC

• Systems development life cycle
• Preliminary investigation
• Systems Analysis
• Systems Design
• Systems Implementation
• Systems Maintenance
• Other models prototype object-oriented

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Modeling

• Tools and methods for presenting systems
  processes and systems data
• DFD, ERD, Systems flowcharts, State Transition
  Diagram, OO
• Developing a model what is a model?
• Different types of model logical physical
• Model behavior

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Business Model

• What is a business model
• What are some basic types?
• Value

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Group

• Identify three other students you will work with
• Introduce yourselves, exchange information
• Find five things you have in common
• What do you know about SAD
• Develop a resume of your individual skills and
  group skills