Nothing is easier than Vensim for creating customized causal loop or stock and flow diagrams. Nothing is more efficient than Vensim for building accurate simulation models of dynamic feedback systems. Building Models With Vensim, you can customize diagrams with different colors, fonts, symbols, arrows, and pipes.
Variable names can appear alone, or inside or outside of boxes, circles, hexagons, and other shapes.
You can create multiple views in one model with each view containing a portion of the total model structure. An Equation Editor helps you build the equations for a simulation model. Vensim can create and simulate models with hundreds of thousands of variables. Vensim has many built-in functions including user defined Lookups, test input patterns, logical operators, random number generators, continuous and discrete delays, smooths and forecasts, scientific functions, and customizable Vensim macros and external functions. Simulation Vensim contains a highly efficient simulation engine providing fast simulation times and allowing storage of huge datasets.