1. A method for optimizing configuration values in a plurality of software programs in an integrated system, the software programs in the integrated system interacting with each other via a network, the method comprising the steps of: collecting, from a configuration management database (CMDB) in the network, the configuration values in the plurality of software programs constituting the integrated system and other configuration values of software programs constituting any other integrated system sharing interactive aspects therewith; generating a regression model of configuration values having a high correlation among the collected configuration values; and calculating an optimum value for the collected configuration values using the regression model.