schedule A plan specification that specifies 1) the quantity of which some material entity will be allocated to the eventual realization of some action specification, and 2) the temporal regions in which each action specification is to be realized. William R. Hogan A plan specification that specifies 1) the quantity of which some material entity will be allocated to the eventual realization of some action specification, and 2) the temporal regions in which each action specification is to be realized. Schedule Matthew Diller plan specification