How To Make Chen ER Diagram

"Interrelationship digraph is a method to identify relationships among a set of items. Items that have a cause or effect associated on another item are linked together (and given weight) for the purpose of identifying the items most affected or items affecting other items the most, giving emphasis on those items for risk mitigation planning. Items involved in risk management could be risks being mitigated, risk strategies, project activities or resources. ...
This method fosters broad thinking of individuals to identify interrelationships of risk items that affect the whole project, determining critical risk areas that must be dealt first and ensures efficient allocation of project resources." [sce.uhcl.edu/ helm/ Risk_ Man_ WEB/ Planning%20 Worksheet%20 Notes_ files%5Cintrldgm.htm]
Relation diagram (interrelationship digraph, relationships digram) helps identify what factors are causes and which factors are effects. Factors help establish KPI (Key Performance Indicators) to monitor changes and the effectiveness of corrective actions in resolving a problem.
The relations diagram is one of the Seven Management and Planning Tools (7 MP tools, Seven New Quality Tools).
The relations diagram template for the ConceptDraw PRO diagramming and vector drawing software is included in the solution "Seven Management and Planning Tools" from the Management area of ConceptDraw Solution Park.