Abstract:  Market demand and service credit are dynamically changing. However, there hasn’t been a unified and  reliable service system. The paper proposes a reliable composite service recommendation model based on thirdparty supervision. A thirdparty mechanism is brought in to supervise and administrate the establishment of service library and to monitor the dynamic changes of quality of service; a reliable service composition platform is established to select services, recommend best service composition and perform other functions; taking the process flow of some manufacturing as an example, the paper compares the cost of works using the model and without using the model through a case of service composition optimization based on workflow scheduling, which also verifies the feasibility and superiority of the proposed recommendation model.
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Key words: resource optimization, monitoring quality, services recommended, work scheduling