Analytica allows you to define algebraic or other relationships between nodes, which can be real-valued, and have more complex relationships—but it can’t propagate evidence without explicit directional dependence. That allows more flexibility—the nodes don’t need to be conditionally independent, for example, and can be indexed to different viewpoints. This also means that it can’t easily be used for lots of things that we use BNs for, since the algorithms used are really limited.
Analytica allows you to define algebraic or other relationships between nodes, which can be real-valued, and have more complex relationships—but it can’t propagate evidence without explicit directional dependence. That allows more flexibility—the nodes don’t need to be conditionally independent, for example, and can be indexed to different viewpoints. This also means that it can’t easily be used for lots of things that we use BNs for, since the algorithms used are really limited.