Patent ID: 8838639

Claim:
A management device comprising: a memory; and a processor coupled to the memory, wherein the processor executes a process comprising: storing in a memory unit of the memory, configuration item information regarding configuration items which are managed and relationship information regarding first relationships between the configuration items which are managed; extracting, based on the information stored in the memory unit and based on predetermined constraint conditions that include first conditions for a type and a number of one configuration item that has to be related to another configuration item with a certain type, second relationships that are between one configuration item that does not satisfy the type and the number of the first conditions and another configuration item which is corresponding to the type of the first conditions and that are not included in the relationship information; evaluating by executing an application that refers to the second relationships and obtaining an evaluation result regarding the second relationships; making links between the one configuration item that does not satisfy the type and the number of the first conditions and each of configuration items positioned upstream of the one configuration item that does not satisfy the type and the number of the first conditions, respectively; specifying, in each of the links, an error-origin configuration item in which an error has occurred, the error having occurred in configuration items positioned one step-downstream of the error-origin configuration item, the error not having occurred in configuration items positioned one step-upstream of the error-origin configuration item; specifying a link that has one error-origin configuration item out of the links; and making a grade about the second relationship corresponding to the specified link.