Complementary Projects ====================== The most valuable component for better integrating models with *basically anything else* is a standard language for communicating the structure of those models. That language is `XMILE `_. The draft specifications for this have been finalized and the standard should be approved in the next few months. A Python library for analyzing system dynamics models called the `Exploratory Modeling and Analysis (EMA) Workbench `_ developed by Erik Pruyt and Jan Kwakkel at TU Delft. This package implements a variety of analysis methods that are unique to dynamic models, and could work very tightly with PySD. An web-based app called `Simlin `_ created by Bobby Powers exists as a standalone SD engine. Allows building models and exporting them to XMILE output. The `Behavior Analysis and Testing Software (BATS) `_ developed by Gönenç Yücel includes a really neat method for categorizing behavior modes and exploring parameter space to determine the boundaries between them. The `SDQC library `_ developed by Eneko Martin Martinez may be used to check the quality of the data imported by Vensim models from spreadsheet files. The `excels2vensim library `_, also developed by Eneko Martin Martinez, aims to simplify the incorporation of equations from external data into Vensim.