Abstract: Systems and methods are provided for deriving, based on a service for which an entity is to be selected or provisioned, a query to determine, from candidate nodes, one or more node instances within a topology that fulfill one or more criteria provided by one or more classes; and an additional criterion. The candidate nodes represent respective entities. The evaluation of the query includes determining the classes that satisfy or fulfill the one or more criteria, determining one or more second classes that match, or inherit from, the one or more classes, partially evaluating the additional criterion within respective contexts of the candidate nodes and each of the one or more second classes, based on the partial evaluation, processing the query to determine the node instances, and provisioning or presenting an entity represented by a node instance of the node instances to the service.

Abstract: Systems and methods are provided for closing the loop between service assurance and service fulfillment in service provider systems. Configuration parameter values relevant to assuring a determined level of quality regarding services can be obtained. Those configuration parameters may be configured by a service fulfillment system operatively connected to the service assurance system. Dependencies may be calculated between the configuration parameter values, event parameters, and fact parameters representative of the services. The services may be monitored, and events occurring during performance of the services may be identified. The identified events can be correlated to relevant ones of the event parameters. One or more corrective actions to take can be determined by the service assurance system based on the correlation of the identified events to the relevant ones of the event parameters. The one or more corrective actions are fed back into the service fulfillment system to be executed.

Abstract: Systems and methods are provided for closing the loop between service assurance and service fulfillment in service provider systems. Configuration parameter values relevant to assuring a determined level of quality regarding services can be obtained. Those configuration parameters may be configured by a service fulfillment system operatively connected to the service assurance system. Dependencies may be calculated between the configuration parameter values, event parameters, and fact parameters representative of the services. The services may be monitored, and events occurring during performance of the services may be identified. The identified events can be correlated to relevant ones of the event parameters. One or more corrective actions to take can be determined by the service assurance system based on the correlation of the identified events to the relevant ones of the event parameters. The one or more corrective actions are fed back into the service fulfillment system to be executed.