1. SYSTEM Complex system characteristics Casual models Structure EventsPatterns System Parts VariablesLinksLoops Analytical Concept System boundary Behavior Quantities System Environment React Adapt Create change element Loose Active Closed Natasha Vita-More: Systems Tools System Parts Page 1 of 3

2. Characteristics Self-stabilizing Goal setting Program-following Self-reprogramming Anticipation Environment modifying Self-replicating Self-mataining Self-reorganizing Self-programming Increasing complexity Page 2 of 3

3. System models Tools Archetypes QQ BOT CLD GFD Learning Laboratory MFS Policy Structure Diagram Simulation Model Structure-behavior pair System Archetypes Drifting Goals Escalation Fixes that fail Growth and underinvestment Limits to success Shifting the burden Success to success Tragedy of commons Page 3 of 3