1. A method for network analysis, comprising: determining, with a graph module, an initial set of demands upon the resources of a network, each initial demand including a quantification of an amount of the respective initial demand; determining, with the graph module, a new set of demands upon the resources of the network, each new demand including a quantification of an amount of the respective new demand; applying, with the graph module, a policy for assigning a demand of the new set of demands to a demand of the initial set of demands, the policy being based at least upon the quantifications of the amounts of the respective initial demand and respective new demand, wherein, if the respective new demand is greater than the respective initial demand, a portion of the respective new demand is assigned to a next initial demand selected according to the policy; creating, with the graph module, a dependency for the assignment of the demand of the new set of demands to the demand or the demands of the initial set of demands; constructing, with the graph module, a sub-graph including the dependency; and incorporating, with the graph module, the sub-graph into a resource-oriented-dependency graph, wherein the demands upon the resources of the network are demands upon network links that comprise the network.