CASoS Engineering
Sandia National Laboratories

Resource and Exchange Dynamics Lead
Walt Beyeler


Programmatic papers:

A Roadmap for the Complex Adaptive Systems of Systems (CASoS) Engineering Initiative (report)

Engineering Solutions in an Interdependent World: The CASoS Roadmap (presentation)

Phoenix: Complex Adaptive System of Systems (CASoS) Engineering Version 1.0

Complex Adaptive System of Systems (CASoS) Engineering Applications Version 1.0

Complex Adaptive System of Systems (CASoS) Engineering Framework Version 1.0

Complex Adaptive System of Systems (CASoS) Engineering Environment Version 1.0

Application: Resource and Exchange Dynamics

Causal diagram of the primary variable and interactions describing an entity in the resource and exchange model.Infrastructures are networks of dynamically interacting systems designed for the flow of information, energy, and materials. Under certain circumstances, disturbances from a targeted attack or natural disasters can cause cascading failures within and between infrastructures that result in significant service losses and long recovery times.

Modeling capabilities are needed to evaluate the robustness of various systems and to identify factors that control the scale and duration of disruption. The capability described here lays the foundation for developing advanced system security solutions that encompass both external shocks and internal dynamics. Learn more...


  • The Value of Using Stochastic Mapping of Food Distribution Networks for Understanding Risks and Tracing Contaminant Pathways, Stephen H. Conrad, Walter E. Beyeler, Theresa J. Brown, Int. J. Critical Infrastructures, Vol. 8, Nos. 2/3, September 2012, 216-224.

  • 2012 International Conference on Social Computing, Behavioral-Cultural Modeling, & Prediction (SBP12), April 2012, College Park, MD

  • Complex Adaptive Systems of Systems (CASoS) Engineering and Foundations for Global Design, Robert J. Glass, Walter E Beyeler, Arlo L. Ames, Theresa J. Brown, S. Louise Maffitt, Nancy Brodsky, Patrick D. Finley, Thomas Moore, Michael Mitchell, John M. Linebarger, January 2012 (2012-0675)

  • A General Model of Resource Production and Exchange in Systems of Interdependent Specialists, Walter E. Beyeler, Robert J. Glass, Patrick D. Finley, Tu-Thach Quach, Michael D. Mitchell, Matthew Antognoli, Mathew Norton, Marshall Kuypers, Peter Breen, Theresa J. Brown, Stephen H. Conrad, November 2011 (2011-8887)

  • International Society of Dynamic Games Workshop, Rabat, Morocco, September 2007

  • CASoS Web Contact