2003 Deliverable Report: Forecasting Methodologies for Multidimensional Aggregated Demands Task 879.001: Intelligent Demand Aggregation and Forecast Solutions Project 879: Demand Data Mining and Planning in Semiconductor Manufacturing Networks 2. Technical Results 2.1 Hierarchical Products Fig. 1 Product Hierarchy Example

1. Abstract and Summary In 2002, to cope with demand uncertainty, we have defined and proposed optimum demand planning hierarchy (DPH) to best support different granularities of planning activities. (see 2002 deliverable report). This year, the proposed DPH is extended from one-product DPH to hierarchical-product DPH. In addition, the DPH concept has been realized in a software system prototype, referred to as DPH Planner. In the DPH planner, the optimum DPH with the least demand fluctuation can be automatically created. Moreover, users can define their current demand planning practice in the DPH planner. With the benchmark of the optimum DPH, a what-if interface is also provided to allow users adjust their DP practice.