Schema translation into a unified model for service operation

Unified operation requires that an information model be defined systematically and that each operation system (OpS) communicate with other OpSs by translating its own local schema into a unified schema, and vice versa. A unified information model for service operation and the mechanism that translates a source schema into a target schema are presented. By evaluating the overhead needed for schema translation, it is shown that the proposed method effectively achieves unified operation