I'd start here: https://en.wikipedia.org/wiki/Blackboard_system https://en.wikipedia.org/wiki/Blackboard_system I'm not up-to-date, but I haven't heard of new

I'd start here: https://en.wikipedia.org/wiki/Blackboard_system https://en.wikipedia.org/wiki/Blackboard_system I'm not up-to-date, but I haven't heard of new work on blackboards or federated rule-based systems for maybe 20 years now, after expert systems grew increasingly probabilistic (and procrustean), and BBSes based on binary rules showed little sign of escaping the classic brittleness of RBSes. The wiki article mentions 'Bayesian Blackboard' systems. Maybe they had greater success?