Abstract: Within both a system for managing a work in process (WIP) workload lot within a fabrication facility and a method for managing the work in process (WIP) workload lot within the fabrication facility, there is provided for direct customer access for requesting a change in handling instructions for the work in process (WIP) workload lot within the fabrication facility. The direct customer access when requesting the change provides for enhanced flexibility when operating the fabrication facility.

Abstract: The present invention provides a data structure relating to a product and a method of preparing the same to set up the data structure. The data structure is stored in the memory of a computer comprising a technology table, a product table, and a tool table (or a mask table). The technology table comprises a technology ID and a process layer data for recording the information of each process layer, wherein the process layer data comprises a plurality of layer codes. Each layer code corresponds to a process layer. In addition, the product table comprises a product ID and a product link table for providing a link to the technology table. The tool table comprises at least one tool ID for each process layer and a tool link table for providing a link to the product table.