| Article ID: | iaor20062388 | 
| Country: | United States | 
| Volume: | 2 | 
| Issue: | 3 | 
| Start Page Number: | 144 | 
| End Page Number: | 147 | 
| Publication Date: | Sep 2005 | 
| Journal: | Decision Analysis | 
| Authors: | Howard Ronald A., Matheson James E. | 
| Keywords: | history | 
Since the invention of influence diagrams in the mid-1970s, they have become a ubiquitous tool for representing uncertain situations. This single diagram replaced awkward manipulations of decision trees and nature's trees with a single representation that displays both the sequential and informational structure of decisions. The diagram permits high-level graphic communication, clear assessments and computation in a single graphical system. This retrospective discusses the evolution and application of influence diagrams.