10 templates
System dynamics (stock & flow) templates
Native Forrester-style system-dynamics diagrams. Stocks render as rectangles, flows as double-line pipes with valves, clouds as source/sink shapes, auxiliaries as circles, and information links as dashed arrows. Used for ecology, economics, public health, and any dynamic systems modelling.
System dynamics — SIR epidemic
Classic SIR compartmental model.
Research & AcademicSystem dynamics — bathtub stocks + flows
Pedagogical stock + inflow + outflow example.
Research & AcademicSystem dynamics — firm growth feedback
Customers + revenue + R&D investment feedback loop.
Business & StrategySystem dynamics — fluid tank with valve
Engineering control example.
Research & AcademicSystem dynamics — predator-prey
Lotka-Volterra-style stocks with mutual feedback.
Research & AcademicInventory Control (System Dynamics)
Stocks and flows for an inventory system.
Operations & OpsProduct Adoption (System Dynamics)
Bass-style diffusion of innovation.
Business & StrategyCompany Cash Flow (System Dynamics)
Receivables, cash balance and spend.
Business & StrategyWard Nursing Workforce (System Dynamics)
Trainee, registered and bank staffing stocks with the reinforcing loop where vacancies raise workload, which raises turnover.
Operations & OpsLittle's Law in a Claims Team (System Dynamics)
Backlog, work in progress and completions as stocks, with a WIP limit gating the start rate so lead time follows from WIP over throughput.
Lean & Flow