Extend: An interactive simulation tool

The Extend simulation environment provides the tools for all levels of modelers to efficiently create accurate, credible, and usable models. Extend's design facilitates every phase of the simulation project, from creating, validating, and verifying the model, to the construction of a user interface which allows others to analyze the system. Simulation tool developers can use Extend's built-in, compiled language, ModL, to create reusable modeling components. All of this is done within a single, self-contained software program that does not require external interfaces, compilers, or code generators.