Patent attributes
A processing server includes a storage device that stores program revision data for identifying a revision of a program and the program of the revision, and runtime revision data for identifying a revision of runtime data input and output to and from the program and the runtime data of the revision, a generating unit that, after receiving a revision of a program that is a target of execution, secures an execution area in the storage device and generates execution target data for executing the program of the revision that is the target of execution in the secured execution area, and an executing unit that executes the execution target data using the runtime data that is the target of execution in the execution area.