Modeling and Analysis of 3d Printing Ws-Bpel Business Processes Based on ServicenetCheng-Lei Zhang, Bu-Yun Sheng, Fei-Yu Zhao, Xi-Yan Yin and Jing-Jing CaoITM Web Conf., 12 (2017) 01034DOI: https://doi.org/10.1051/itmconf/20171201034