| 摘要 |
A rejection determination is made taking into consideration of an agreed service level for a combine workflow executed on a combine workflow system wherein a plurality of business application are collaborated with one another for business collaborations. A state is expressed which will appear when the combined workflow is hypothetically rejected, based on the progress thereof. A processing operation of the combined workflow is predicted based on the expressed state, taking into consideration the influence exerted on the plurality business application systems and the plurality of workflow systems in respect of response performance. A processing operation, which is the result of the prediction, and historical information of event information from the event information recording means are retrieved, and an evaluation value is calculated based on the result of the statistical processing of the historical information. It is determined whether or not the evaluation value satisfies a condition defined by said agreed service level. When the evaluation value does not satisfy the condition defined by the agreed service level, a rejection-target-specific progress for selecting/specifying an execution which has an arbitrary progress equal to or less than a maximum progress, is generated as a rejection target.
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