Abstract: A computer system-based method and system for modeling, planning and analyzing distributed systems in view of environmental considerations in the deployment of said distributed system is disclosed. The method comprises the steps of representing selected ones of a plurality of components and relationships among selected components with said distributed system, wherein said representation includes attributes and characteristics associated with environmental considerations, identifying a location of each of said selected components in said distributed system determining an environmental aspect of each of said identified locations, and providing a recommendation based on said environmental aspects. In one aspect of the invention, an analysis is performed that determines a cause of changes in environmental conditions and a recommendation is made to correct the cause of the environment changes.

Abstract: A method, apparatus and computer product for modeling and analyzing additional services incorporated into a Voice-over-IP (VoIP) configuration composed of a plurality of components is disclosed.

Abstract: A method, apparatus and computer-program product for logically representing and analyzing a Virtual Private Network (VPN) in a plurality of functional representation layers is disclosed.

Abstract: A method, apparatus and computer-program product for logically representing and analyzing a Virtual Private Network (VPN) in a plurality of functional representation layers is disclosed.

Abstract: A method and apparatus are provided for multi-realm system modeling (MRSM) for dividing systems into components, defining realms containing objects representing system components, defining relationships between the system components, defining relationships and/or associations between realms sufficient to unify objects in the realms, and unifying objects in the realms based on the relationships and/or associations.

Abstract: A method, apparatus and computer-program product for modeling distributed systems is disclosed. The method comprises the steps of representing selected ones of a plurality of physical and logical elements as a plurality of objects, organizing the selected ones of the objects within each of the plurality of model layers, the model layers representing at least one function of the distributed network, determining behavioral relationships among objects within each of the model layers and determining behavioral relationships among selected ones of the objects among each of the model layers, said selected objects representing layer endpoints, wherein information between model layers is passed through said layer endpoints. The apparatus recites a processor for performing the steps of the disclosed method and the computer-program product provides code or instruction to a processor for executing the disclosed method steps.

Abstract: A method, apparatus and computer product for modeling and analyzing performance of a Voice-over-IP (VoIP) configuration, composed of a plurality of components, is disclosed.

Abstract: A method, device and computer product suitable for performing an analysis on a Grid Computer Network (GCN) is disclosed. The method comprises the steps of representing selected ones of a plurality of components and a relationship among the components in the GCN, providing a mapping between a plurality of events and a plurality of observable events occurring among the components, wherein the mapping is represented as a value associating each event with each observable event, and determining at least one likely causing event based on at least one of the plurality of observable events by determining a measure between each of a plurality of values associated with the plurality of observable events and the plurality of causing events.

Abstract: A method, system and computer product for performing a system analysis of a surveillance network containing a plurality of components. The method comprises the steps of representing selected ones of the plurality of components, providing a mapping between a plurality of observable events and a plurality of causing events occurring in components, wherein the observable events are at least associated with each of the at least one components, and determining at least one likely causing event based on at least one of the plurality of observable events by determining a measure between each of a plurality of values associated with the plurality of observable events and the plurality of causing events.

Abstract: A method and apparatus for representing a network and performing operations on the represented network are disclosed. The method comprises the steps of creating at least one configuration non-specific object class associated with components of the network, creating at least one configuration non-specific representation of relationships among associated object classes, representing a behavior relationship among the object classes based on the representations of the relationships among the object classes and analyzing properties of the network based on the behavior relationships. In aspects of the invention, the represented network may be an MPLS network, a VPN or a combined MPLS-VPN.

Abstract: A method, system and computer product for determining the source of problems in a Radio Frequency Identification (RFID) network containing a plurality of component are disclosed. The method comprises the steps of representing selected ones of the plurality of components, providing a mapping between a plurality of observable events and a plurality of causing events occurring in components, wherein the observable events are at least associated with each of the at least one components, and determining at least one likely causing event based on at least one of the plurality of observable events by determining a measure between each of a plurality of values associated with the plurality of observable events and the plurality of causing events.

Abstract: A method, system and computer product for performing a system analysis of a surveillance network containing a plurality of components are disclosed. The method comprises the steps of representing selected ones of the plurality of components, providing a mapping between a plurality of observable events and a plurality of causing events occurring in components, wherein the observable events are at least associated with each of the at least one components, and determining at least one likely causing event based on at least one of the plurality of observable events by determining a measure between each of a plurality of values associated with the plurality of observable events and the plurality of causing events.

Abstract: A method and apparatus for logically representing and performing an analysis on a Storage Area Network (SAN) is disclosed. The method comprising the steps representing selected ones of a plurality of components and the relationship among the components associated with the SAN, providing a mapping between a plurality events and a plurality of observable events occurring among the components, wherein the mapping is represented as a value associating each event with each observable event, and performing the system analysis based on the mapping of events and observable events. In another aspect of the invention, a method and apparatus are disclosed for representing and performing an analysis on a SAN wherein the SAN is included in a larger system logically represented as a plurality of domains is disclosed.

Abstract: A method and apparatus for determining causality mapping between causing events and detectable events among a plurality of nodes in a distributed system is disclosed. The method comprises the steps of automatically generating a causality mapping model of the dependences between causing events at the nodes of the distributed system and the detectable events in a subset of the nodes, the model suitable for representing the execution of at least one system operation. In one aspect the generation is perform by selecting nodes associated with each of the detectable events from the subset of the nodes and indicating the dependency between a causing event and at least one detectable event for each causing event at a node when the causing event node is a known distance from at least one node selected from the selected nodes.

Abstract: A method and apparatus for determining the number and location of monitoring entities in a distributed system is disclosed. The method comprising the steps of automatically generating a causality mapping model of the dependences between causing events at the nodes of the distributed system and the detectable events associated with a subset of the nodes, the model suitable for representing the execution of at least one system operation, reducing the number of detectable events in the model, wherein the reduced number of detectable events is suitable for substantially representing the execution of the at least one system operation; and placing at least one of the at least one monitoring entities at selected ones of the nodes associated with the detectable events in the reduced model. In another aspect, the processing described herein is in the form of a computer-readable medium suitable for providing instruction to a computer or processing system for executing the processing claimed.

Abstract: A method and apparatus for representing a network and performing operations on the represented network are disclosed. The method comprises the steps of creating at least one configuration non-specific object class associated with components of the network, creating at least one configuration non-specific representation of relationships among associated object classes, representing a behavior relationship among the object classes based on the representations of the relationships among the object classes and analyzing properties of the network based on the behavior relationships. In aspects of the invention, the represented network may be an MPLS network, a VPN or a combined MPLS-VPN.

Abstract: A method and apparatus are provided for multi-realm system modeling (MRSM) for dividing systems into components, defining realms containing objects representing system components, optionally defining relationships between the system components, defining associations between realms sufficient to unify objects in the realms when needed, and unifying objects in the realms based on the associations. The realms are defined in a way that enables unified processing for various applications of MRSM.