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isee systems empowers you to find solutions to complex problems with our innovative dynamic software.

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Our Unique Features

AI Virtual Assistant

Harness the power of AI to speed and improve the development of coherent and complete Causal Loop Diagrams (CLDs) and simulatable models! Our brand-new AI Virtual Assistant allows you to connect to different LLM-based AI engines, provide prompts, and receive results as both diagrams and simulatable models. You can then analyze the results, and refine and edit them based on continued interaction with the AI engine. The Virtual Assistant has been organized in a way that makes it easy to experiment with different queries to improve your results.

Virtual AI Assistant

Loops That Matter

Introduced in 2020, Loops That Matter brings clarity to your simulation data. It lights up the most important feedback loops, giving you a simple visual guide to the forces behind the behavior. This immediate understanding of model behavior allows you to focus on the correct variables to create a robust analysis of the results.

Loops That Matter

Assemblies

Assemblies are self-contained models that streamline the modeling process by serving as building blocks for other models. You can move from a blank page to a simulating model in a matter of minutes. Assemblies are now also available in a special section of the isee Exchange where users can share their custom assemblies and download others to their software.

Assemblies example #1
Assemblies example #2

Designs

Designs enable you to create sophisticated interfaces with consistent aesthetics and color palettes. With a selection of styles that are fully customizable, you can go from blank page to professional presentation in no time. You can even use them to create interfaces for your Vensim® models.

Designs
Designs example #4

Storytelling

Storytelling gently introduces the model structure behind the interface by unfurling parts of the model. Annotations explain what structure means and partial simulation reveals the structure's implications for the model's behavior. Try a live demo here.

Storytelling

isee Exchange and Sharing

The isee Exchange is a repository of content created by Stella users around the world. You can easily publish simulations or upload models and share them with others at no cost. Users can view and run these simulations from any modern browser. Paid private hosting options include additional features such as data collection or running large models with an added engine on our servers. The Exchange can be found at https://exchange.iseesystems.com.

Our Newest Features

Data Manager on the Interface

This feature enables users to hide, show, delete, and rename runs, and to use the settings from previous runs to create new runs. This makes it much easier to compare results across runs, manage the amount of information displayed in comparative graphs and tables, and refine experiments.


Interface sections

Organize interface pages into sections, much like stories are organized. This makes it easier to navigate during development and can be helpful when multiple people are working on an interface.


Custom shape tool

The Custom Shape (Model) tool allows you to place arbitrary shapes on a causal loop or model diagram to highlight elements of the diagram. This makes it easier to present complex diagrams by breaking them up into a number of visual components.


Connector enhancements

Connector labels increase the readability of diagrams, especially Causal Loop Diagrams. The polarity symbol can also be set to appear in the middle of the connector rather than just at its head.


Variable values in text boxes and annotations

Insert variable values into text boxes and annotations by including a variable name and optional time enclosed in ${}. The value of the variable will be displayed using the number formatting options, including any number text mappings set up for the variable.

More About Our Products

Take Systems Thinking to the next level using Stella software. Evolve the way you think about problems in your business, community, school, or government agency. From simple to complex, Stella helps you build and simulate models that capture the complexities of feedback and gives you decision support for your prospective policy or process changes through what-if scenarios. Stella allows you to identify and easily share key leverage points with others, resulting in everyone working towards the best outcome. Learn more about our Stella products to see how they can benefit you.



Conference attendees save 20% on their purchase through October 9, 2025, by using discount code B0$1SDC.

“It’s so important to think through complex problems to find the best solutions. Stella provides a basis for systematically building understanding and knowledge across complex environments to see how all parts—human, physical, social, financial, and legal—fit together. Especially when problems are complex, Stella helps us think things through.”
    —Geoff Wells

"Stella Architect allows us to share our modeling work...around the world. All they need is web access...They don’t need any training to review and run a Stella Architect model. And we don’t have to worry that someone will change or break the models we share."
    —David Rozek

“Stella from isee systems is our gold standard.”
    —Ellen O'Neill

Our Newsletter

Our newsletter, The Connector, keeps you up to date on our latest news, including exciting Stella projects, our latest resources and software releases, our upcoming travels, and more. Read our latest issue here, and find a full index of issues here.

ISDC schedule (all times Boston, Massachusetts, USA)

Our ISDC Workshops

If you'd like to participate in our workshops during the ISDC, please login or create an account, then refresh this page and return to the header "Our ISDC Workshops." You will see links to associated materials and a 30-day workshop license when they're available.

Looking for online training?

Phone: (603) 448-4990 Email: info@iseesystems.com

   Monday - Friday: 9:00 am - 5:00 pm EDT | Saturday - Sunday: Closed
24 Hanover St, Ste 8A | Lebanon, NH 03766 | US

isee systems inc. holds trademarks registered in the U.S. Patent and Trademark Office for iThink®, Stella®, isee systems® and claims the following trademarks; isee NetSim™, isee Exchange™, Stella Live™, Causal Lens™, Stella Online™, Stella Professional Online™, and Assemblies™.

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