Using STPA to perform hazard analysis of social and organizational systems: a case study of patient safety in the U.S. healthcare system

• Nancy G. LevesonMassachusetts Institute of Technology
• John ThomasMassachusetts Institute of Technology
• Polly M. HarringtonMassachusetts Institute of Technology
• Rodrigo L. RoseMassachusetts Institute of Technology
• Elizabeth White BakerVirginia Commonwealth University
• Dale Wesley Russell
• Stephen Powell
• Alana Keller