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Home / Projects / Other Projects / Virtual Systems Integration / Virtual Integration Process

Virtual Integration Process

This project focused on developing a coherent, structured specification for the core parts of the System Architecture Virtual Integration (SAVI) Virtual Integration Process (VIP).  Foundation elements under this project include:

  • Model Repository structure, definition, and specification
  • Data Exchange Layer structure, definition, and specification
  • Consistency checking between all models used in the VIP
  • Interface definitions between architectural tools and domain-specific analysis tools (identified, prioritized and incorporated into the VIP development scheme)

The project emphasized quantification of the value attributable to the SAVI model-based, architecture-centric VIP for each scenario.  The central focus is on a set of safety analyses suggested by the Society of Automotive Engineer’s S-18 and EUROCAE’s WG-63 Committees in AIR 6110.

Feature sets developed include:

  • Capability to carry out safety analyses using the SAVI annotated architectural model.
    • Based on SAE ARP 4761 and AIR 6110 guidelines and incorporating all the safety analysis tools listed in those documents.
    • Support both hardware and software elements (cyber physical elements).
  • Capability to virtually integrate hardware and software components with consistency checking that detects anomalies and how they propagate through the annotated architectural model whenever tradeoffs are necessary.
    • Confine interest to one iteration through an architectural model (see below).
    • Capture all gaps or missing consistency checking factors.
  • Capability to analyze a subset of system parameters within the architectural model prior to building a mockup or a breadboard model.
    • Illustrate how changes within one subsystem or component propagate to other levels of the system hierarchy.
    • Conduct trade studies and use the architectural model to assist in choosing and implementing improvements with the virtual system.

Project participants

  • Developed and released a formal specification for the VIP.
  • Developed and released a formal specification for the Model Repository and Model Data Exchange Layer (MR/DEL).
  • Demonstrated the SAVI VIP and tool chain for a selected version of the SAE AIR 6110 aircraft braking system safety analyses example.

Project Details

AFE 61

Period of Performance:
January 1, 2013 – December 31, 2013

Cost per participant: $495,000

Total project value: $3,570,000

Current AVSI Projects

  • RF Interference with Radar Altimeters
  • Artificial Intelligence in Aerospace Systems
  • Wireless Avionics
  • New Materials for Aerospace Systems

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