title: More than 50 years of history and accomplishments in human performance model development.
abstract: OBJECTIVE
  I provide a summary that introduces three significant threads in the development of human performance models (HPMs) - manual control models derived from engineering control theory, network models founded on the definition of human reliability, and models derived from cognitive architectures.
  
  
  BACKGROUND
  HPMs are important because they allow the quantification of human performance capacities and limitations to be included in the analysis and simulation of engineering systems.
  
  
  METHODS
  For each thread, founding articles and contemporary developments are cited that illustrate the range of innovation that has taken place.
  
  
  RESULTS
  Many contemporary concepts are rooted in this modeling history.
  
  
  CONCLUSIONS
  The most successful models represent circumstances for which the situational and temporal environment in which the human performance takes place is most heavily constrained.
  
  
  CONCLUSIONS
  Applied illustrations are drawn from vehicle handling qualities, unmanned aerial systems, and mission training, for example.
authors.affiliation: BBN Technologies, Cambridge, Massachusetts 02138, USA. pew@bbn.com
authors.forename: Richard W
authors.initials: RW
authors.lastname: Pew
mesh_terms: D006804:Ergonomics / Q000266:history*; D049673:History, 20th Century; D049674:History, 21st Century; D006801:Humans; D008962:Models, Theoretical; D013647:Task Performance and Analysis