1. An information processing apparatus having a processor, the apparatus comprising: a read unit reading operation information corresponding to an application according to an execution request and relating to an operation of the application; and a construction unit constructing, via the processor, an execution environment in which the application operates, based on the operation information read by said read unit, wherein said construction unit judges whether the execution environment can be constructed, based on the operation information and virtualized resources available of fragmented virtualized resources, and constructs the execution environment by combining the available fragmented virtualized resources when said construction unit judges that the execution environment can be constructed, wherein basic information relating to accounting accompanying execution of the application is contained in the operation information, and wherein said information processing apparatus further comprises a counting unit counting, when the application is executed, accounting information accompanying the execution of the application based on the information relating to the basic information and information relating to the execution.