Patent ID: 8484169

Claim:
A configuration information management device that integrates information on configuration items, the configuration information management device comprising: a storage unit that stores therein (i) integrated information obtained by integrating a plurality of pieces of information on configuration items that satisfies a first consistency condition, each of the plurality of pieces of information including at least one property and a corresponding property value, and (ii) management information that indicates whether each property has a same property value in all of the plurality of pieces of information; and a determining unit that determines whether a second consistency condition newly set is severer than the first consistency condition or not, and when the second consistency condition is severer than the first consistency condition, determines whether each property related to the second consistency condition is a property having the same property value in all of the plurality of pieces of information on the basis of the management information stored in the storage unit, wherein when the determining unit determines that each property related to the second consistency condition is the property having the same property value in all of the plurality of pieces of information, the integrated information is maintained.