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This paper proposes a method for composing user network operation services, using Web service composition techniques. We define two types of common operation services (COSs) for user network resources. Atomic COSs do not rely on other COSs, and each of them is provided by an elemental function of each piece of network equipment. Composite COSs are composed of other atomic or composite COSs, and provide users with practical operation services. Network resources and COSs are described in semantic languages such as OWL and OWL-S, which realize Web service composition, and composite COSs are composed based on those descriptions and composition rules. Examples of composite COSs are services for QoS control between each gateway and end points, which are composed of atomic COSs for control of each piece of network equipment. This approach provides users with automatic composition of practical network operation services in accordance with each user network configuration.