Analysis of cloud service transaction in cloud manufacturing

The new networked manufacturing mode, cloud manufacturing (CMfg), is provided with a new operation and transaction mode. To support the research, development and application of the mode and service platform of CMfg, manufacturing resource and capability cloud service transaction (CST) of the tripartite users (i.e., provider, operator and consumer) is described briefly, and the detailed transaction flow is provided. With the characteristics of different cloud services (CSs), considering the multi-layer of logistics, information flow and capital flow, the transactions on hardware-class, software-class, product-class and capability-class CSs are analyzed respectively. Finally, the important and difficult problems urgently to be solved in the whole CST process are pointed out.