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ASSAP : Advanced System Safety Assessment Program

New Directions in Probabilistic Assessment Henk Roelant, LaRC Joanne Bechta Dugan, University of Virginia Kevin Sullivan, University of Virginia October 26, 2000. ASSAP : Advanced System Safety Assessment Program.

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ASSAP : Advanced System Safety Assessment Program

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  1. New Directions in Probabilistic AssessmentHenk Roelant, LaRCJoanne Bechta Dugan, University of VirginiaKevin Sullivan, University of VirginiaOctober 26, 2000

  2. ASSAP: Advanced System Safety Assessment Program • Dynamic Fault Tree analysis: a new approach to determining the probability of failure for complex systems • Galileo/ASSAP: a software tool for DFT analysis developed at University of Virginia under the sponsorship of LaRC • Galileo/ ASSAP analyzes the probability of failure for complex systems (i.e. the “P” in PRA)

  3. ASSAP Development Being developed under NAS1-99098 (UVA) - 32 month effort (March 1999-November 2001) -$675,000 provided by NASA Code Q -Builds on 10 years worth of academic research funded by NSF, NASA and industry • Beta version of Galileo/ASSAP currently available for review. • Integrated efforts in software engineering and reliability engineering • Usable interoperable software environment using Commercial-Off-The-Shelf (COTS) components such as MS Word, MS PowerPoint and Visio • Demonstration of capabilities ...

  4. User Interface

  5. Textual Editing

  6. Rendering Graphical View

  7. Low-Level Editing

  8. Sensitivity Analysis

  9. High-Level Editing

  10. Send To New Page

  11. Connect Gates

  12. Select Subtree

  13. Render To Textual

  14. Save & Close

  15. Analyze Sage III

  16. Galileo/ASSAP • Galileo/ASSAP is a promising new approach to probabilistic analysis of critical systems • Sets a new standard for the “P” in PRA • Interested in reviewing the Beta version? Looking for beta testers (a few initially) Contact Henk Roelant at NASA Langley h.a.roelant@larc.nasa.gov 757-864-1741

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