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Simgua Description

Solve complex simulation problems

We live in a complicated world which creates new challenges for us as a society. From financial crises to a smokestack in China creating a draught in Texas, we are surrounded by examples of complexity out of control.

Simgua is built to simulate and model complex systems. If you have just started your adventure with system dynamics it will guide you through creating your first models. Whether you are interested in the financial system, sustainability and ecology, defense strategies, or the sales projections of a new product; Simgua is designed to model your problem. Simgua is very easy to use. Even the most detailed of models can be created by simply dragging and dropping the different parts of your model. Download our free trial to see how easy and intuitive Simgua is to use.

A Powerful Tool

If you are an experienced user however, Simgua will provide you with a set of very advanced tools to achieve the exact results you want. What is more we have open-sourced our analysis algorithms, so you can always verify the results of your simulation. The power user will take control of Simgua using Visual Basic and macros to fine tune every aspect of their model and analysis.

The Tool You Want to Use

Simgua comes with the tools you need built-in. Optimized for speed, and including many ways to input and visualize your data, Simgua is the tool for researchers and professionals attempting to manage complexity. Examples of the built-in tools include optimization, risk assessment, and sensitivity analysis studios.

Key Features

* Visual modeling that is intuitive to use
* Constructed models are self-documenting and ideal for communication
* Models can be built from simple mathematical equations
* Built-in, automated model verification and validation tools
* Supports the use of Visual Basic algorithms to extend models and equations
* Quickly make your models "live" and share them with others through interactive web pages
* Create redistributable "Components" that may be shared with others
* Features for both power-users and beginners
* Macro support similar to Microsoft Word or Excel
* Built-in Optimization, Sensitivity Testing and Risk Assessment studios
* Cross-platform support for Windows and Macintosh

Feature Details

Visual Modeling

Developing models shouldn't be hard. It shouldn't require you to memorize the names of dozens of arcane variables. A good model is one that can be communicated and shared easily. In short, a good model is one that is influential. These are the kinds of models that Simgua creates.

* Build models from a set of 8 basic primitives that are snapped together like Legos
* Drag and drop primitives in order to create a model
* Self-documenting, model diagram is automatically generated and updated as you change your model
* Model is easy to understand and share with others
* Construct models of unlimited size and complexity
* Context-sensitive help throughout the application is ready to give you a helping hand
* Arrays add depth to your model allowing it to automatically expand in size as you add more data

Share and Use Models Online

The true value of a model is in your ability to share and communicate its results with others. You'll enjoy Simgua's one-click model publishing feature to make your models "live" on the internet.

* Display model diagrams and descriptions in Internet Explorer, Firefox, and other web browsers
* Website visitors have the ability to interact with and edit properties that you have defined
* Simulations may be run over the internet using the same powerful simulation engine that you use on your desktop
* Charts and tables are used to illustrate the simulation results
* Example Live Models: Full World Simulation, Product Adoption Business Simulation and Wolf and Rabbit Ecology Simulation

Optimization, Sensitivity Analysis and Risk Assessment

Need to optimize your strategic decisions using a model? Or do you need to explore the uncertainity of your model's predictions? Simgua includes ready-to-go tools to carry out data optimization and sensitivity analysis tasks.

* Multivariate optimization studio built into Simgua
* Minimize costs, maximize benefits, or estimate parameter values to match historical data
* Use sensitivity analysis to explore the uncertainty of your predictions
* Risk assessment allows you to extrapolate beyond the bounds of your simulation results to calculate theoretical risk and costs

The Best of Both Worlds

Sometimes visual modeling and mathematical equations aren't enough to capture the complex nature of reality. In certain cases, you will need complicated logical statements or iterative algorithms. With Simgua's Visual Basic support, implementing these is a breeze.

* Complete Visual Basic compiler built-in (works on Mac too!)
* Can use Visual Basic to write complex equations or solve non-closed form equations
* Supports reusable functions to carry-out common data conversions
* Visual Basic compiler includes advanced features such as classes and operator overloading
* Macros can automate repetitive tasks and can be used to create custom analysis algorithms

Redistributable Components

Simgua is designed for collaboration and teamwork. In fact, we do not view Simgua as an application. Instead we view Simgua as a platform on which you build your own applications. These applications are your models and Simgua's component mechanism allow you to optimize Simgua towards the creation of a specific type of model.

* Components are ideal to model systems containing repeated parts such as electric circuits or water treatment plants
* Develop components to model separate processes and then share these components with others
* Components can be developed from a mixture of primitives and Visual Basic code
* Create elegant component calibration dialogs using HTML and other open technologies
* Password protect components to distribute them commercially

Power Data Display

So many simulation tools have interfaces that are about as minimal and unattractive as you can get. That's usually fine, but it's not when you need to share your results with others. Simgua supports state-of-the-art tabular and charting capabilities in addition to Excel exports of your datasets. Here are some of the features supported by Simgua's beautiful charts:

* Primary and secondary axes
* Logarithmic and linear axes with custom bounds
* Configurable axes and legend
* Trendlines and confidence bands (linear, exponential, polynomial, logarithmic)
* Configurable data series styles including 3D-Charts

Materials

Materials are a cutting-edge feature unique to Simgua. If you choose, they can separate the data of your model from the structure of the model and allow this data to manipulate and modify itself.

* Define custom materials to simulate complex substances containing submaterials
* Materials can have an infinite number of submaterials
* Define material transformations that are automatically applied independent of the larger model
* Create material helper functions to aggregate and and manipulate submaterials

Open Sourced Analysis

Your data is important and your results matter. It is sometimes hard to trust programs that behave like "Black Boxes": applying some mysterious operation to your data before returning an unverified answer. It is even harder to justify the use of such programs to clients. How do they know the answer is right, how do they know there weren't bugs in the Black Box application you used?

You know you can trust Simgua, because we have open sourced our analysis algorithms. Simgua is not another Black Box application, it's open and subject to the scrutiny of researchers from around the world. When your results matter, we think that it is best to be safe.
Simgua Availability

A free, trial version of Simgua is available for download and use. It works on both Windows and Apple computers.

Simgua runs on Windows 7, Vista and XP systems. It runs on Apple systems using Max OS X 10.4 and newer.

Simgua Version History

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