1. A  print demand forecasting system for use with a print production system in which multiple print jobs are processed over a selected time interval, comprising: a data collection tool, said data collection tool collecting print demand data for each print job processed during the selected time interval; mass memory for storing the collected print demand data; a computer implemented service manager for processing the stored print demand data to obtain a first time series component and a second time series component, said computer implemented service corresponding the first time series component with a first forecast model and the second time series component with a second forecast model; and a selector process, operating with said computer implemented service manager to select one of the first forecast model and the second forecast model, the selected one of the first forecast model and the second forecast model being used to obtain forecast data for a selected time outside of the selected time interval.