Motion Flow is a tool that graphically arranges clips (motion files) so that animation transitions smoothly from one clip to the next. You can use a Motion Flow graph to set up a series of clips with transitions between them. The biped then performs the series of motions in sequence.
Motion Flow graph with transitions between motion files
You can also create a network of clips on the graph, where each clip has a transition to two or more clips. With this type of graph, you can tell character studio to generate the actual motion sequence for you based on random selection.
Multiple transitions from each clip
A crowd simulation can also be used to generate a motion sequence from this type of graph. Each biped in the crowd chooses from the motions and transitions in the graph based on its desired destination and speed. These factors, in turn, are determined by the crowd parameters you set.