] JustReason is our open source, inference engine.
] Knowledge decision makers use is represented with
] decision trees and new structures we call argument trees
] following insights from artificial intelligence research.
] JustReason draws on knowledge bases (stored as standard
] relational database tables) and automatically produces
] web pages that encode sequence of prompts that guide
] users to a conclusion.

I dunno why they went with PHP on this... seems like Java would have been the way to go for live charts.