PHASYS is a multidisciplinary research group organized in an Administrative Core and four project arms. The research project arms represent two parallel and complementary approaches to researching public health preparedness and adaptive response: original research on criteria and metrics from Project Arms 1 and 2; and agent-based systems modeling from Project Arms 3 and 4. The criteria/metrics project arms will produce indicators for performance and adaptive response. The modeling project arms will capture these indicators, identify their interdependencies, and predict how measured variations of quality and potency of the indicators can affect the effectiveness and efficiency of emergency response.

The four inter-dependent and thematically linked research project arms of PHASYS are:

In addition, there are three pilot studies that have been or are currently being supported by the PHASYS Core: