Constructing Influence Diagrams & Causal Loop Diagrams

Abstract

Causal diagrams, as used in the field of System Dynamics, are important tools for describing the structure of feedback systems. While they cannot be used to infer the dynamics of a system, they provide a powerful way to capture and communicate mental models and other hypotheses about the causes of observed behaviour. The construction of causal diagrams requires an approach that is more disciplined than the usual mind-mapping exercise, while still allowing flexible expression of ideas. The basic ideas described briefly in this guide are intended as an introduction to the art and science of causal-diagram construction. We provide instructions for constructing influence diagrams (IDs) and causal loop diagrams (CLDs). Show more