Whether in a SONET or a dense-WDM transport environment, we can expect to see a continuance of the two main survivable architectures: ring and mesh. First, an optical disc is provided, wherein a relationship between the output power for writing the optical disc and a specific parameter corresponding thereto is defined as a first function. A decoding mode and a version of a code mapping format for decoding the received code is determined. The BOM uniquely identifies items using a unique identifier, and the associating is by attaching to the CAD data of the item the unique identifier used in the BOM database for the item. The method is useful to make small shaped abrasive particles having insufficient mass to be efficiently individually sintered in a rotary kiln without joining two or more of the shaped abrasive particles together. The method can form a pattern with a pitch the original pitch formed by available photolithography technologies by only using one photo mask or one pattern transfer process, self-aligned etching back processes, and conventional deposition processes.