Systems and methods for processing alerts indicative of conditions of nodes of a computing infrastructure are herein disclosed as comprising, in an implementation, generating a node hierarchy comprising nodes associated with a service model, wherein relationships between the nodes are based on impact rules, identifying alerts related to the node hierarchy, wherein the alerts are indicative of impairments affecting at least a portion of the node hierarchy, and performing impact calculation for nodes of the node hierarchy based on the identified alerts. In an implementation, the impact values may be calculated in parallel for nodes indicated for processing. In an implementation, the nodes associated with the service model represent infrastructure or applicative resources and comprise nodes included in the service model and nodes related to, but not included in, the service model.