A PKI-based lightweight workflow model

• Published in: 2005 International Conference on Control and Automation Vol. 2; pp. 1062 - 1067 Vol. 2
• Main Authors: Jian Zhang, Jigui Sun, Niya Li, Chengquan Hu, Zehai Li
• Format: Conference Proceeding
• Language: English
• Published: IEEE 2005
• Subjects: Access control; Computer science; Computer science education; Constraint theory; Educational technology; Engines; Knowledge engineering; Laboratories; Time factors; Workflow management software
• DOI: 10.1109/ICCA.2005.1528279
• ISBN: 0780391373; 9780780391376
• ISSN: 1948-3449

The workflow model is the abstract expression of the workflow or the business process. Following the WfMC reference model, a PKI-based lightweight workflow model named as PBLW is put forward in this paper. The framework of PBLW is proposed. Based on the time constraint directed graph, the workflow theory model in formalization is described in detail, and the time constraint problems are discussed in order to enhance the time management ability of the workflow model. Furthermore, in order to express the complicated secure access control constraint of the workflow, a conditioned RBAC model based on PKJ technology is presented, according to the traditional RBAC security access control model. Finally, the workflow engine driven algorithms for the workflow instance are given. By the actual inspection and users' feedback, it proves that this model can express the basic requirements of a majority of the process applications.