Abstract: A compound computer machine in which a plurality of modules are installed in one casing and in which trouble of management in combining modules to construct a computer machine is reduced. In the compound computer machine including a processor module; a component module which is combined with the processor module to construct a computer machine; and a management module which manages the processor module and the component module, the management module has module combination constraint information and priority information for constructing the computer machine, prepares installation information of the compound computer machine on receiving a request for constructing the computer machine, thereafter prepares module combination candidate information from the constraint information, and adds priority to the combination candidate information in a case where there exists the priority information to manage the constructions of the modules.