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SV-4 Template

SV-4 Template. Systems Functionality Description – step-by-step instructions and templates. Click the mouse button to see the next slide. Use the browser Back button to return to the Tutorial. Four Steps in developing your SV-4 Step 1 – Identify the Product’s Timescale.

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SV-4 Template

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  1. SV-4 Template Systems Functionality Description – step-by-step instructions and templates Click the mouse button to see the next slide. Use the browser Back button to return to the Tutorial.

  2. Four Steps in developing your SV-4Step 1 – Identify the Product’s Timescale • Decide on the timescale this product is expected to represent (as-is, to-be, transitional) • Multiple timescales are often needed for each product; a separate SV-4 should be produced for each timescale that is needed

  3. Step 2 - Reference Existing Architecture Products • System Interface Description (SV-1) to identify applicable: • Systems • System nodes • System interfaces • Operational Information Exchange Matrix (OV-3) to identify applicable operational nodes • Activity Model (OV-5) to identify applicable activities

  4. Step 3 – Allocate Functional Activities • Determine the appropriate allocation of operational activities to operational nodes • Determine which systems or system functions (will) implement each operational activity • Determine and define the data flows associated with each system interface

  5. Step 4 - Illustrate Systems Functionality Description • Graphically depict the components of the system functionality • Two templates are provided, following this slide • First template is a data flow diagram showing systems and systems functions connected by arrows to depict the physical connections among them • Second template is a functional decomposition diagram showing functions depicted in a tree structure • A functional decomposition diagram is typically used where the functions are dependent on one another • You may use either or both depending on the nature of the various system functions

  6. SV-4 Systems Functionality Description – Data flow diagram template System Function or Process Data Description Data Description System or Node Data Repository Data Repository Data Description Data Description Data Description Data Description Data Integration Process System Function System System Function Data Description Data Description System Data Description Data Description Data Description Data Description Data Description Data Integration Function System Function System or Node System Data Description System Function or Process Data Description System System System Integration Function Data Description Data Description Data Description System or Node

  7. SV-4 Systems Functionality Description – Functional decomposition diagram template (double-click chart to edit)

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