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Vensim® ApplicationsLearning Environments and Model DistributionVensim ApplicationsA Vensim application — or Venapp — can be constructed to provide a Management Flight Simulator or Learning Environment for a model. This allows individuals with little or no training in modeling to get meaningful access to a model. A Venapp combines a model with customized menu driven screens that you design and build, providing an interface appropriate for your target audience. Venapp interfaces can display sketches and use view menu commands to manipulate sketches. Venapp input controls for changing model constants include editing boxes, list boxes, sliders, radio buttons, and checkboxes.Venapps can be constructed in a text editor, or now a newly-released graphical editor similar to the sketch editor. This supports cut and paste so you can quickly recreate screens or similar elements. Venapps can perform most simulation functions including sensitivity simulations and optimization. Vensim analysis tools can be accessed to display model structure and simulation output behavior. Games, executive information systems, management flight simulators and scenario builders no longer need to be a black box, but can be investigated through Causal Tracing and other analysis tools to provide understanding on what has happened, and why. Venapps are written in a simple scripting language, and soon a graphical interface builder will be released to speed development.
Vensim Application RuntimeVensim Application Runtime allows you to distribute stand alone applications using Vensim as the underlying engine. Users install these applications like any other program. Vensim Application Runtimes are available in 5 and 10 packs, and licensing for unlimited royalty-free distribution is also available.Vensim RuntimeVensim Runtime is a read-only version of Vensim DSS. It supports the full interface of DSS but cannot create or edit models or files. Models can be examined, simulated, and analyzed.Model ReaderThe Vensim Model Reader is a Vensim Application that can be distributed for free. The Model Reader allows users to review and simulate models that you have created with Vensim Standard, Professional, or DSS. Create your model then save it as a binary format file (.vmf) and send it along with a copy of the Model Reader to your target audience. The Model Reader has button driven menus allowing the user to examine model structure, simulate the model, and examine behavior of simulation output. A set of the Vensim analysis tools can be used for model analysisCustom Applications and the Vensim DLLThe Vensim DLL is a separate program that can be called from other applications such as Visual Basic, C, C++, Visual C++, Delphi, Excel, and multimedia authoring tools. The DLL allows you to access a Vensim model from your custom-built applications: send data to Vensim, simulate a model, make changes to model parameters, and collect the simulation data for display. You can also call Vensim's tools for analyzing and displaying information in the application. For example, you might wish to create an Excel spreadsheet in which you enter data, send this data to a Vensim model for simulation, take the results of the simulation and put them back into the spreadsheet for display (in tables or graphs) or for further manipulation. Another example would be the creation of a customized management flight simulator in a programming language, using the Vensim DLL as the simulation engine, and Visual Basic for the control, display, and perhaps multimedia presentation of information.Ventana Systems UK Ltd. — SableDeveloped by Ventana Systems UK Ltd., Sable is a programming environment used in creating application interfaces for Vensim, similar to the Venapp builder. Sable has a number of features which make it unique and useful. You can program interfaces that run over intranets or the internet. Return to SoftwareReturn to Concepts FAQ |
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