A storage medium stores a program thereon. The program instructs a computer to perform a process. The process comprises storing first information indicating dependency relationship between types into a storage, the types corresponding to configuration elements included in a system; acquiring relational information and type information from plural databases, the relational information indicating dependency relationships between plural configuration elements, the type information indicating the types of the plural configuration elements; generating second information indicating dependency relationships between a certain configuration element included in the plural configuration elements and each of configuration elements indicating dependency relation with the certain configuration element; generating third information indicating that the certain configuration element and the each of the configuration elements has the dependency relation indicated in the generated second information based on the type information and determining whether the generated third information is coincident with the first information stored in the storage.