SYSTEM UPDATE DEVICE AND SYSTEM UPDATE METHOD

摘要

A system update device 10 includes a reverse operation generation unit 11 which generates a reverse operation, which is an operation for transitioning the state of a state element to the current state from an arbitrary state during execution of an update procedure on the basis of operations included in the update procedure, wherein the operations are for transitioning, from the current state to a target state, the state of a state element configuring a system being updated, and the update procedure is a procedure including multiple operations arranged in a predetermined order; and a first procedure generation unit 12 which generates a rollback procedure, which is a procedure including multiple generated reverse operations arranged in reverse of the predetermined order.