The Dataflow Graph system is a node-based procedural asset generation environment inside the Unreal Engine editor.
Dataflow was created to improve iteration times when creating certain asset types in the engine. The same Dataflow graph can be used by multiple assets and the graph itself can produce different results depending on the inputs given by the source asset.
Dataflow is a general-purpose system that can be adapted to various physics asset types, such as Chaos Cloth, Chaos Flesh, and Geometry Collection fracturing. The system is designed to be extensible by developers using C++. Developers can further adapt the system to accommodate their specific needs.
You can learn more about Dataflow by reading the documentation: