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Relationship Modeling
• Capture understanding• Overcome individual limitations• Qualitative in nature
Intent of this Video
• Understand elements• Alternative notation• Notation short comings• Preferred notation• Develop a Causal Loop Diagram
Elements
• Entity – non negative noun or noun phrase• Influence – relationship between entities• Simplest CLD – 2 entities + 1 influence
Notation Resolution• Variables
• Instantaneous & Accumulators (Stock)
• Differentiate the two• Rectangles for Stocks
Additional Thoughts
• Telling Loops - count the “-” signs• Odd number is a balancing loop• Even number is a reinforcing loop
• Delay – use || or delay on the line• Qualitative only, not quantitative• See Stock & Flow Diagram Video