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Human System Risk Communication: Directed Acyclic Graphs- The Human System Risk Board (HSRB) is responsible for the management of a portfolio of 30 human system risks that NASA tracks and configuration manages to mitigate for future crewed exploration missions.
- The HSRB has been exploring the concept of causal diagrams (in the form of Directed Acyclic Graphs or DAGs) as an approach to creating knowledge graphs for each risk to enable shared mental models of causal flow from spaceflight hazards to mission outcomes among HSRB Stakeholders.
- These diagrams are intended to improve insight and communication of risk across the myriad subject matter experts and management interested in human system risk reduction. This includes program managers, systems engineers, and operators in addition to the Human Health and Performance Directorate.
- The DAG project was intended to create the foundation for composition of the 30 baselined DAGs into a single risk network and software is being developed in parallel to enable this forward work.
Document ID
Document Type
E.L. Antonsen
(Baylor College of Medicine Houston, Texas, United States)
R.J. Reynolds
(Mortality Research and Consulting)
E. Connell
(Leidos (United States) Reston, Virginia, United States)
R. Scully
(KBR (United States) Houston, Texas, United States)
A.A. Abukmail
(University of Houston - Clear Lake Houston, Texas, United States)
A.M. Monti
(JES Tech (United States) Houston, Texas, United States)
J.M. Charvat
(KBR (United States) Houston, Texas, United States)
M. Van Baalen
(Johnson Space Center Houston, Texas, United States)
D.M. Buckland
(Johnson Space Center Houston, Texas, United States)
Date Acquired
January 25, 2023
Subject Category
Aerospace Medicine
Systems Analysis and Operations Research
Meeting Information
Meeting: 2023 Human Research Program (HRP) Investigators' Workshop (IWS)
Location: Galveston, TX
Country: US
Start Date: February 7, 2023
End Date: February 9, 2023
Sponsors: National Aeronautics and Space Administration
Funding Number(s)
Distribution Limits
Portions of document may include copyright protected material.
Technical Review
Single Expert
directed acrylic graph
causal diagram
human system risk
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