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Applied Structured Systems Analysis

Practical Guidelines

Segment Outline:

  • Determine if the system is data oriented or process oriented
  • Is the proposed system or business requirements to be met highly data dependent? If YES
    • Prepare a Statement of Purpose
    • Concentrate on the Entity Relationship Model and the Data Dictionary
    • Build State Transition Diagrams for the 1 to 4 most important entities
    • Explanation of how to use and reconcile the State Transition Diagrams to determine process or an External Event List
    • Create multi-level DFD Process Models
    • Generate a proposal for a detailed analysis of the system
  • If NO, the system is not highly data dependent
    • Prepare a Statement of Purpose
    • Generate External Event List of candidate external events to which the system must respond
    • Create individual Data Flow Diagrams for each process responding to each external event
    • Create DFD Process Model with 2 -3 balanced levels resulting from the External Event List
    • Prepare additional Entity Relationship diagrams
    • Prepare additional State diagrams to validate DFD processes
    • Generate a proposal for a detailed analysis of the system
  • Additional guidelines are discussed and addressed based on the system being process or data driven.

Click on the link below to view a short demonstration of the "Practical Guidelines" video.

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Demonstration Video

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