Object Identification in Remanufacturing Database

This paper proposes a hybrid object identification in remanufacturing database combining constraint-foreign keys of relational database with coding system.That is,object identification based on coding system is used from the item level to parts level and the method of constraint-foreign keys combining main keys with foreign keys is used below the pat level.To illustrate the remanufacturing product information in detail,its model is described in an incomplete tree structure because the remanufacturing blanks come from discarded electromechanical products and their product information are usually uncertain.After analysis,either constraint-foreign keys of relational database or coding system both are defective,but the hybrid object identification meutioned in this paper is very effective.