A method and apparatus has been shown and described which allows Quality of Service to be controlled at a temporal granularity. Time-value curves, generated for each task, ensure that mission resources are utilized in a manner which optimizes mission performance. It should be noted, however, that although the present invention has shown and described the use of time-value curves as applied to mission workflow tasks, the present invention is not limited to this application; rather, it can be readily appreciated by one of skill in the art that time-value curves may be used to optimize the delivery of any resource to any consumer by taking into account the dynamic environment of the consumer and resource.