A computer method of managing a workflow of scheduled nodes. The method comprises instantiating a computer instantiated mathematical model of workflow paths, wherein the mathematical model defines nodes to be scheduled, defines time-based anchors between the nodes, and sequence-based anchors between the nodes; for each workflow object, determining a workflow schedule for the workflow object by an application executing on a computer system, wherein the workflow schedule comprises a plurality of nodes and wherein the application determines the workflow schedule based on the time-based anchors and sequence-based anchors between nodes defined by the mathematical model; storing by the application context information about completion of the activities performed when performing the node associated with the workflow path of the workflow object; and changing the workflow schedule of the workflow object based on the context information about completion of the activities performed and based on the mathematical model.