These days, many companies are executing their business aims based on decentralized cooperation of software components which work on various systems over a network. However, messages and processes between systems are designed individually in each operations division. Therefore, the system development for adjusting interfaces is expensive, so the companies cannot introduce their services in a dynamic business environment. To resolve such problems, we propose interface modeling technique and message mapping technique which model the relationship between the message formats and semantics on the formats by using Web Ontology Language (OWL) and execute the mapping between the message formats by using semantics. We developed the user interactive message mapping tool and evaluated our proposed methods based on the interface specifications of real network management systems.