1. One or more computer readable volatile or nonvolatile computer readable media storing a configuration management database for storing configuration information about an IT system, the configuration management database comprising: representations of configuration items that correspond to configuration items in the IT system, indicia of relations between the configuration items, and attributes of the configuration items; configuration state information of the configuration items, the configuration state information comprising information indicating whether a configuration item, relation, or attribute is in a state of pending approval or in a state of planned deployment; and temporal information indicating a temporal state of a configuration item, relation, or attribute.