Method for generating workflow and computer-readable recording medium having stored therein workflow generating program

A non-transitory computer-readable recording medium having stored therein a workflow generating program for causing a computer to execute a process comprising:

• generating a plurality of candidate workflows by making a modification to part of an existing workflow, the existing workflow defining a plurality of condition branches and following contents at respective destinations of the plurality of condition branches;
• obtaining a plurality of KPI (Key Performance Indicator) fluctuation vectors one for each of the plurality of candidate workflows from the existing workflow;
• generating a plurality of synthesized policies by synthesizing two or more of the plurality of KPI fluctuation vectors;
• calculating, when one of selected routes of the plurality of candidate workflows contains a plurality of the modifications, a KPI predicted value of each of the plurality of synthesized policies by reflecting a weight parameter on the KPI fluctuation vector, the weight parameter being set such that a weight for a modification to an upper point of the selected route among the plurality of modifications is higher than a weight for a modification to a lower point of the selected route among the plurality of modifications;
• and
• outputting a workflow of one of the plurality of synthesized policies the KPI predicted value of which satisfies a target value.