The Research On The Trust Mechanism Of Supply Chain In Cloud Computing

In recent years, with the rapid development of computer information technology, as one of the main supporting technologies for "Smarter Planet" and modern service industry, Cloud Computing has become a research hotspot of academia and industry. Due to the supply chain solution based on Cloud Computing being able to provide enterprises scalable, centralized and cheap IT infrastructures, and middleware platforms and applications online, and to provide services on demand, Cloud Computing will bring enterprises about innovative management mode and operating ambient and it’s becoming the new computing platform for enterprises gradually.However, supply chain enterprises in Cloud Computing environment are virtualized, which makes it possible for these enterprises to provide illusive even fraudulent information to make a profit. Consequently, recent studies have already concentrated on how to establish a highly efficient trust evaluation model for supply chain in the cloud environment in order to enhance the cooperation between node enterprises and gain greater efficiency. Taking all above points, the paper proposed and lucubrated the issue of trust mechanism of supply chain under the cloud computing environment, and the primary task and contribution are as follows:Firstly, a reference architecture of supply chain based on cloud computing(C-SCR A) is built on the basis of characteristics of supply chain management. And the modeli ng and analysis method of Time Petri Net is adopted to verify the effect of this model on improving the efficiency of the supply chain.Secondly, a trust evaluation model for supplier in cloud computing is proposed on the basis of gray AHP. Fully taking into account the gray feature of trust evidence of enterprises in cloud environment, this model evaluates all providers comprehensively by utilizing Analytic Hierarchy Process (AHP) to determine the weight of trust evidence and the gray assessment method to handle the quantification and comparison for qualitative information.Thirdly, a trust value updating and processing mechanism based on double sliding windows is proposed by constructing a time correction function. By initializing the window size and determining the condition of sliding both big and small windows, the updating for trust evaluation value of the window is ensured. Thus it reflects the authenticity of transactions between supplier entities in cloud environment objectively. The simulation results show that the trust evaluation model is simple and reliable. It’s suitable for large-scale open network such as cloud computing, and provides new solutions for the supply chain trust issue in the cloud environment.