DATA PROCESSING APPARATUS, METHOD, AND PROGRAM

摘要

A UMID extraction/embedding unit (10) extracts UMID data embedded in material data. When a CPU (11) performs processing accompanied by quality deterioration such as recording of material data to a database (8), the generation indicated by the generation data in the UMID data extracted is updated to create new generation data. The UMID extraction/embedding unit (10) embeds the new generation data into the material data.