Interactive medication data repository and data management program, and method for providing timely medication data updates via use of a network, such as the Internet. The method involves adding to a polymeric composition forming the coating layer a predetermined amount of a polyolefinic compound, which contains at least one unsaturation and at least one carboxyl group in the polymer chain. Users are assigned an avatar according to answers to profile questions. The production request copies a workflow of abstracted resources representing the workflow of production steps. Moreover, it is possible to provide a semiconductor device which has no surface damage and includes a single-crystal silicon thin film which is thin and uniform in thickness. The feedback determination circuitry generates quantization quality feedback based on the channel estimate.