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


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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)


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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 ...














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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 [email protected]

    757-864-1741


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