1. A method of providing decision support for real time command center, comprising: classifying, using a decision tree, an observed network state of a network into at least one category; selecting from a plurality of meta-models, a meta-model associated with the classified at least one category, the plurality of meta-models having been calibrated using results of simulations of a plurality of scenarios occurring in the network; evaluating one or more action plans by running the selected meta-model with data of the observed network state; and generating one or more recommended action plans for the real time command center, based on the evaluation step.