"Function Flow is a library that takes a set of algorithms and wires them together in to a single composite algorithm. Without Function Flow, one might right. public Enchilada MakeEnchilada(Oil oil, Spices spices, Flour flour, Broth broth, Tortillas tortillas, Cheese cheese, Onion onion){ var sauce = Mix(oil, spices, flour, broth); var browned = Fry(oil, tortillas); var grated = Grate(cheese); var assembled = Assemble(sauce, browned, grated); var almost = Bake(assembled); var chopped = Chop(onion); return Garnish(almost, sauce, chopped); } With Function Flow this becomes: public Enchilada MakeEnchilada(Oil oil, Spices spices, Flour flour, Broth broth, Tortillas tortillas, Cheese cheese, Onion onion){ return new FlowBuilder() .Then(Mix) .Then(Fry) .Then(Grate) .Then(Assemble) .Then(Bake) .Then(Chop) .Then(Garnish) .Run(oil, spices, flour, broth, tortillas, cheese, onion); } It has very specific use-cases. For more details please see the github page."