18. The apparatus of claim 15 , wherein calculating the operational dependence role comprises: identifying a protocol of a data packet at the at least one port; determining a protocol importance score of the protocol, wherein the protocol importance score comprises a numerical score assigned to the protocol based on a relative importance of the protocol in the network environment; calculating a connection average for the asset; determining a connection score of the connection average; and calculating a service dependence score for the at least one service as a function of the connection score and the protocol importance score.
19. The apparatus of claim 18 , the processor being operable to execute further instructions comprising: calculating a respective service dependence score for each service running on the asset; sorting the respective service dependence scores; and calculating the host dependence score as an iterative function of the respective service dependence scores.