1.2.7 Illustrations

• System flow chart:

  • Represents a process using symbols with information about steps or sequence of events
  • Symbols are linked with arrows to illustrate the flow of direction of the process
• Data flow diagram (DFD):

  • Maps out the flow of information for any process or system
  • Uses symbols like rectangles, circles, arrows, plus short text labels to show data inputs, outputs, storage points, etc
• Structure Chart:

  • Represents the organization of a system
  • Shows different parts in hierarchical order
• Other diagrams worth knowing:

  • UML class diagram
  • Wireframes