Operation search method and operation search apparatus

An operation search method comprising:

• determining, by a processor, based on work logs each indicating a plurality of operations executed in previously-performed system change work and processing executed in accordance with the plurality of operations, a precondition and a postcondition for each of the plurality of operations, the precondition indicating an expected state of a system that is to execute processing corresponding to the each of the plurality of operations, the postcondition indicating an expected state of the system that has executed the processing corresponding to the each of the plurality of operations;
• associating, by the processor, each of the plurality of operations with an operation whose precondition matches a postcondition of the each of the plurality of operations, wherein the associating includes associating a first operation indicated in a first work log with a second operation indicated in a second work log different from the first work log, a precondition of the second operation matching a postcondition of the first operation;
• searching, by the processor, for a path that starts from an operation whose precondition matches an initial condition satisfied by an operation object system, traces an associated operation, and reaches an operation whose postcondition matches a target condition indicating a target state of the operation object system after work;
• and
• generating, by the processor, an operation procedure in which operations on the path found by the search are arranged in order.

An operation search apparatus comprising:

• a processor configured to perform a process including:
• determining, based on work logs each indicating a plurality of operations executed in previously-performed system change work and processing executed in accordance with the plurality of operations, a precondition and a postcondition for each of the plurality of operations, the precondition indicating an expected state of a system that is to execute processing corresponding to the each of the plurality of operations, the postcondition indicating an expected state of the system that has executed the processing corresponding to the each of the plurality of operations,
• associating each of the plurality of operations with an operation whose precondition matches a postcondition of the each of the plurality of operations, wherein the associating includes associating a first operation indicated in a first work log with a second operation indicated in a second work log different from the first work log, a precondition of the second operation matching a postcondition of the first operation,
• searching for a path that starts from an operation whose precondition matches an initial condition satisfied by an operation object system, traces an associated operation, and reaches an operation whose postcondition matches a target condition indicating a target state of the operation object system after work, and
• generating an operation procedure in which operations on the path found by the search are arranged in order.