Abstract: With its primary focus on community health, the public health system
focuses on intervention and prevention of disease and injury to protect entire
populations. As a federation of city, county and state entities operating
independently under a complicated array of local, state and federal laws,
public health can best be understood as a complex adaptive system. The dynamic
nature of this system and the need for public health agencies to relate and
respond to numerous stimuli in terms of new regulations, changing health
status, emerging threats and shifting policy, can mask the commonality of
underlying business processes performed within the public health sector.
Heightened demand for interoperable, adaptive information systems across the
broader US health system necessitates the recognition of this commonality and
highlights the need for comprehensive analysis and understanding of these core
business processes. In turn, this analysis paves the way for public health to
apply proven systems engineering techniques to streamline, automate and
facilitate those processes. Here, we look at the nature of the public health
system and the evolution of a purpose-built methodology for process engineering
within public health. We also present a case study based on the application of
the methodology to develop requirements for public health laboratory
information management systems.